Methyl Alcohol

Formula: CH₄O
Molecular weight: 32.0419
IUPAC Standard InChI: InChI=1S/CH4O/c1-2/h2H,1H3
IUPAC Standard InChIKey: OKKJLVBELUTLKV-UHFFFAOYSA-N
CAS Registry Number: 67-56-1
Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript.
Isotopologues:
Other names: Methanol; Carbinol; Methyl hydroxide; Methylol; Monohydroxymethane; Wood alcohol; CH3OH; Colonial spirit; Columbian spirit; Hydroxymethane; Wood naphtha; Alcool methylique; Alcool metilico; Columbian spirits; Metanolo; Methylalkohol; Metylowy alkohol; Pyroxylic spirit; Wood spirit; Rcra waste number U154; UN 1230; Pyro alcohol; Spirit of wood; Bieleski's solution; NSC 85232
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Information on this page:
Other data available:
- Reaction thermochemistry data: reactions 51 to 100, reactions 101 to 150, reactions 151 to 200, reactions 201 to 250, reactions 251 to 300
- Henry's Law data
- IR Spectrum
- Mass spectrum (electron ionization)
- Vibrational and/or electronic energy levels
- Fluid Properties
Data at other public NIST sites:
- Gas Phase Kinetics Database
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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Gas Chromatography, References, Notes

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity	Value	Units	Method	Reference	Comment
Δ_fH°_gas	-49. ± 3.	kcal/mol	AVG	N/A	Average of 9 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
Δ_cH°_gas	-182.52 ± 0.048	kcal/mol	Cm	Rossini, 1932	Flame Calorimetry; Corresponding Δ_fHº_gas = -48.157 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of gas

C_p,gas (cal/mol*K)	Temperature (K)	Reference	Comment
8.126	50.	Thermodynamics Research Center, 1997	p=1 bar. Recommended entropies and heat capacities are in good agreement with other statistically calculated values [ Ivash E.V., 1955, Zhuravlev E.Z., 1959, Chen S.S., 1977, Chao J., 1986, Gurvich, Veyts, et al., 1989]. Please also see Chao J., 1986, 2.; GT
8.831	100.
9.235	150.
9.491	200.
10.18	273.15
10.53 ± 0.007	298.15
10.56	300.
12.34	400.
14.27	500.
16.06	600.
17.65	700.
19.06	800.
20.30	900.
21.40	1000.
22.36	1100.
23.21	1200.
23.958	1300.
24.613	1400.
25.191	1500.
26.34	1750.
27.20	2000.
27.84	2250.
28.35	2500.
28.7	2750.
28.9	3000.

Constant pressure heat capacity of gas

C_p,gas (cal/mol*K)	Temperature (K)	Reference	Comment
10.13 ± 0.30	279.	Stromsoe E., 1970	Heat capacity at 279 K was obtained by thermal conductivity [ Halford J.O., 1957]. Vapor heat capacities from calorimetric measurements [ De Vries T., 1941] were converted to the ideal gas heat capacities by corrections for the gas imperfection effects [ Chen S.S., 1977, Chao J., 1986, 2]. Ideal gas heat capacities are given by [ Stromsoe E., 1970] as a linear function Cp=f1(a+bT). This expression approximates the experimental values with the average deviation of 1.17 J/molK. The accuracy of the experimental heat capacities [ Stromsoe E., 1970] is estimated as less than 0.3%. Please also see De Vries T., 1941, Weltner W., 1951, Halford J.O., 1957.; GT
11.46 ± 0.30	345.6
11.19 ± 0.28	347.35
11.01 ± 0.30	349.65
11.37 ± 0.28	356.55
11.17 ± 0.30	358.15
11.52 ± 0.30	358.85
11.67 ± 0.30	359.85
12.02 ± 0.30	368.15
11.71 ± 0.28	373.35
12.26 ± 0.30	382.15
12.22 ± 0.28	398.95
12.51 ± 0.30	401.15
12.27 ± 0.28	401.35
12.43 ± 0.10	403.2
12.72 ± 0.30	420.15
12.88 ± 0.28	431.45
13.09 ± 0.28	442.15
13.36 ± 0.30	442.65
13.39 ± 0.28	457.35
13.67 ± 0.10	464.0
13.80 ± 0.28	477.75
13.95 ± 0.28	485.05
14.23 ± 0.28	498.95
14.44 ± 0.30	521.2
14.68 ± 0.28	521.35
15.37 ± 0.28	555.95
15.88 ± 0.28	581.35
15.96 ± 0.28	585.35

Condensed phase thermochemistry data

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Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity	Value	Units	Method	Reference	Comment
Δ_fH°_liquid	-56.97	kcal/mol	Ccr	Baroody and Carpenter, 1972	ALS
Δ_fH°_liquid	-57.24 ± 0.04	kcal/mol	Ccb	Chao and Rossini, 1965	see Rossini, 1934; ALS
Δ_fH°_liquid	-57.10 ± 0.86	kcal/mol	Ccb	Green, 1960	Reanalyzed by Cox and Pilcher, 1970, Original value = -57.01 ± 0.05 kcal/mol; ALS
Δ_fH°_liquid	-59.89	kcal/mol	Ccb	Parks, 1925	ALS
Δ_fH°_liquid	-60.1 ± 1.2	kcal/mol	Ccb	Richards and Davis, 1920	DRB
Quantity	Value	Units	Method	Reference	Comment
Δ_cH°_liquid	-173.45 ± 0.03	kcal/mol	Ccb	Chao and Rossini, 1965	see Rossini, 1934; Corresponding Δ_fHº_liquid = -57.23 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Δ_cH°_liquid	-173.64 ± 0.05	kcal/mol	Ccb	Green, 1960	Corresponding Δ_fHº_liquid = -57.04 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Δ_cH°_liquid	-173.60 ± 0.048	kcal/mol	Ccb	Rossini, 1931	Corresponding Δ_fHº_liquid = -57.082 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Δ_cH°_liquid	-170.90	kcal/mol	Ccb	Parks, 1925	Corresponding Δ_fHº_liquid = -59.78 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Δ_cH°_liquid	-170.61	kcal/mol	Ccb	Richards and Davis, 1920	At 291 K; Corresponding Δ_fHº_liquid = -60.072 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity	Value	Units	Method	Reference	Comment
S°_liquid	30.399	cal/mol*K	N/A	Carlson and Westrum, 1971	DH
S°_liquid	30.31	cal/mol*K	N/A	Kelley, 1929	DH
S°_liquid	31.00	cal/mol*K	N/A	Parks, Kelley, et al., 1929	Extrapolation below 90 K, 34.3 J/mol*K. Revision of previous data.; DH
S°_liquid	32.60	cal/mol*K	N/A	Parks, 1925	Extrapolation below 90 K, 40.75 J/mol*K.; DH
Quantity	Value	Units	Method	Reference	Comment
S°_{solid,1 bar}	0.2670	cal/mol*K	N/A	Ahlberg, Blanchard, et al., 1937	DH

Constant pressure heat capacity of liquid

C_p,liquid (cal/mol*K)	Temperature (K)	Reference	Comment
19.0	298.15	Filatov and Afanas'ev, 1992	DH
19.39	298.15	Khasanshin and Zykova, 1989	T = 175 to 338 K. Unsmoothed experimental datum.; DH
19.18	298.15	Andreoli-Ball, Patterson, et al., 1988	DH
19.20	298.15	Okano, Ogawa, et al., 1988	DH
19.4	298.15	Lankford and Criss, 1987	DH
19.44	298.	Korolev, Kukharenko, et al., 1986	DH
19.19	298.15	Ogawa and Murakami, 1986	DH
19.49	298.15	Tanaka, Toyama, et al., 1986	DH
19.17	298.15	Costas and Patterson, 1985	T = 298.15, 313.15 K.; DH
19.47	298.15	Zegers and Somsen, 1984	DH
18.86	288.15	Benson and D'Arcy, 1982	DH
19.58	298.15	Villamanan, Casanova, et al., 1982	DH
19.3	293.15	Atalla, El-Sharkawy, et al., 1981	DH
19.39	298.15	Carlson and Westrum, 1971	T = 5 to 332 K.; DH
20.0	298.	Deshpande and Bhatagadde, 1971	T = 298 to 318 K.; DH
20.5	313.2	Paz Andrade, Paz, et al., 1970	DH
20.5	298.2	Katayama, 1962	T = 10 to 60°C.; DH
19.3	311.	Swietoslawski and Zielenkiewicz, 1960	Mean value 21 to 56°C.; DH
20.6	323.	Hough, Mason, et al., 1950	T = 323 to 353 K.; DH
18.11	270.	Staveley and Gupta, 1949	T = 90 to 270 K.; DH
20.7	300.8	Phillip, 1939	DH
19.97	313.15	Fiock, Ginnings, et al., 1931	T = 40 to 110°C.; DH
19.1	292.0	Kelley, 1929	T = 16 to 293 K. Value is unsmoothed experimental datum.; DH
18.7	270.	Mitsukuri and Hara, 1929	T = 190 to 270 K.; DH
19.1	290.1	Parks, 1925	T = 89 to 290 K. Value is unsmoothed experimental datum.; DH
19.9	298.	von Reis, 1881	T = 288 to 335 K.; DH

Constant pressure heat capacity of solid

C_p,solid (cal/mol*K)	Temperature (K)	Reference	Comment
16.35	120.	Sugisaki, Suga, et al., 1968	glass phase; T = 20 to 120 K.; DH
1.29	20.5	Ahlberg, Blanchard, et al., 1937	T = 5 to 28 K.; DH
25.1	173.	Maass and Walbauer, 1925	T = 93 to 173 K.; DH

Phase change data

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Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis

Quantity	Value	Units	Method	Reference	Comment
T_boil	337.8 ± 0.3	K	AVG	N/A	Average of 154 out of 171 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
T_fus	176. ± 1.	K	AVG	N/A	Average of 13 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
T_triple	175.5 ± 0.5	K	AVG	N/A	Average of 8 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
T_c	513. ± 1.	K	AVG	N/A	Average of 27 out of 31 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
P_c	79. ± 1.	atm	AVG	N/A	Average of 17 out of 20 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
V_c	0.117	l/mol	N/A	Gude and Teja, 1995
V_c	0.113024	l/mol	N/A	Craven and de Reuck, 1986	TRC
V_c	0.118	l/mol	N/A	Francesconi, Lentz, et al., 1981	Uncertainty assigned by TRC = 0.004 l/mol; TRC
V_c	0.11663	l/mol	N/A	Zubarev and Bagdonas, 1969	Uncertainty assigned by TRC = 0.0035 l/mol; TRC
Quantity	Value	Units	Method	Reference	Comment
ρ_c	8.51 ± 0.07	mol/l	AVG	N/A	Average of 7 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
Δ_vapH°	9.0 ± 0.1	kcal/mol	AVG	N/A	Average of 11 out of 12 values; Individual data points

Enthalpy of vaporization

Δ_vapH (kcal/mol)	Temperature (K)	Method	Reference	Comment
8.415	337.7	N/A	Majer and Svoboda, 1985
9.37	258.	A	Stephenson and Malanowski, 1987	Based on data from 175. to 273. K.; AC
8.82	353.	A	Stephenson and Malanowski, 1987	Based on data from 338. to 487. K.; AC
10.4	213.	A	Stephenson and Malanowski, 1987	Based on data from 188. to 228. K.; AC
9.30	275.	A	Stephenson and Malanowski, 1987	Based on data from 224. to 290. K.; AC
9.15	300.	A	Stephenson and Malanowski, 1987	Based on data from 285. to 345. K.; AC
8.84	350.	A	Stephenson and Malanowski, 1987	Based on data from 335. to 376. K.; AC
8.63	388.	A	Stephenson and Malanowski, 1987	Based on data from 373. to 458. K.; AC
8.39	468.	A	Stephenson and Malanowski, 1987	Based on data from 453. to 513. K.; AC
7.82	373.	C	Yerlett and Wormald, 1986	AC
6.72	423.	C	Yerlett and Wormald, 1986	AC
4.92	473.	C	Yerlett and Wormald, 1986	AC
1.8	510.	C	Yerlett and Wormald, 1986	AC
8.96	331.	EB	Cervenkova and Boublik, 1984	Based on data from 316. to 336. K.; AC
9.15	303.	N/A	Gibbard and Creek, 1974	Based on data from 288. to 337. K. See also Boublik, Fried, et al., 1984.; AC
8.41 ± 0.02	338.	C	Counsell and Lee, 1973	AC
8.51 ± 0.02	331.	C	Counsell and Lee, 1973	AC
8.65 ± 0.02	321.	C	Counsell and Lee, 1973	AC
8.84 ± 0.02	306.	C	Counsell and Lee, 1973	AC
8.77 ± 0.02	313.	C	Svoboda, Veselý, et al., 1973	AC
8.65 ± 0.02	323.	C	Svoboda, Veselý, et al., 1973	AC
8.51 ± 0.02	333.	C	Svoboda, Veselý, et al., 1973	AC
8.44 ± 0.02	338.	C	Svoboda, Veselý, et al., 1973	AC
8.29 ± 0.02	343.	C	Svoboda, Veselý, et al., 1973	AC
8.84	352.	N/A	Wilhoit and Zwolinski, 1973	Based on data from 337. to 383. K.; AC
9.25	290.	EB	Boublík and Aim, 1972	Based on data from 275. to 336. K. See also Stephenson and Malanowski, 1987.; AC
9.15	303.	EB	Ambrose and Sprake, 1970	Based on data from 288. to 357. K.; AC
8.68	368.	N/A	Hirata, Suda, et al., 1967	Based on data from 353. to 483. K.; AC
9.18	293.	N/A	Klyueva, Mischenko, et al., 1960	Based on data from 278. to 323. K.; AC

Enthalpy of vaporization

Δ_vapH = A exp(-αT_r) (1 − T_r)^β
Δ_vapH = Enthalpy of vaporization (at saturation pressure) (kcal/mol)
T_r = reduced temperature (T / T_c)

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Temperature (K)	298. to 477.
A (kcal/mol)	10.8
α	-0.31
β	0.4241
T_c (K)	512.6
Reference	Majer and Svoboda, 1985

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)

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Temperature (K)	A	B	C	Reference	Comment
353.5 to 512.63	5.15282	1569.613	-34.846	Ambrose, Sprake, et al., 1975	Coefficents calculated by NIST from author's data.
288.1 to 356.83	5.19838	1581.341	-33.50	Ambrose and Sprake, 1970	Coefficents calculated by NIST from author's data.
353. to 483.	5.30730	1676.569	-21.728	Hirata and Suda, 1967	Coefficents calculated by NIST from author's data.

Enthalpy of fusion

Δ_fusH (kcal/mol)	Temperature (K)	Reference	Comment
0.760	175.3	Domalski and Hearing, 1996	AC
0.5249	176.	Maass and Walbauer, 1925	DH

Entropy of fusion

Δ_fusS (cal/mol*K)	Temperature (K)	Reference	Comment
2.99	176.	Maass and Walbauer, 1925	DH

Entropy of fusion

Δ_fusS (cal/mol*K)	Temperature (K)	Reference	Comment
0.88	161.1	Domalski and Hearing, 1996	CAL
4.33	175.3
0.96	157.3
4.37	175.6

Enthalpy of phase transition

ΔH_trs (kcal/mol)	Temperature (K)	Initial Phase	Final Phase	Reference	Comment
0.1520	157.34	crystaline, II	crystaline, I	Carlson and Westrum, 1971	DH
0.76850	175.59	crystaline, I	liquid	Carlson and Westrum, 1971	DH
0.3681	103.	crystaline	glass	Sugisaki, Suga, et al., 1968	Glass transition.; DH
0.170	157.8	crystaline, II	crystaline, I	Staveley and Gupta, 1949	DH
0.7550	175.4	crystaline, I	liquid	Staveley and Gupta, 1949	DH
0.1543	157.4	crystaline, II	crystaline, I	Kelley, 1929	DH
0.7569	175.2	crystaline, I	liquid	Kelley, 1929	DH
0.141	161.1	crystaline, II	crystaline, I	Parks, 1925	DH
0.7591	175.3	crystaline, I	liquid	Parks, 1925	DH

Entropy of phase transition

ΔS_trs (cal/mol*K)	Temperature (K)	Initial Phase	Final Phase	Reference	Comment
0.966	157.34	crystaline, II	crystaline, I	Carlson and Westrum, 1971	DH
4.376	175.59	crystaline, I	liquid	Carlson and Westrum, 1971	DH
3.573	103.	crystaline	glass	Sugisaki, Suga, et al., 1968	Glass; DH
1.08	157.8	crystaline, II	crystaline, I	Staveley and Gupta, 1949	DH
4.304	175.4	crystaline, I	liquid	Staveley and Gupta, 1949	DH
0.980	157.4	crystaline, II	crystaline, I	Kelley, 1929	DH
4.321	175.2	crystaline, I	liquid	Kelley, 1929	DH
0.875	161.1	crystaline, II	crystaline, I	Parks, 1925	DH
4.331	175.3	crystaline, I	liquid	Parks, 1925	DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Ion clustering data, Gas Chromatography, References, Notes

Data compiled as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Reactions 1 to 50

+ Methyl Alcohol = ( • )

By formula: Cl^- + CH₄O = (Cl^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17. ± 3.	kcal/mol	AVG	N/A	Average of 8 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.6	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M
Δ_rS°	24.1	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Δ_rS°	22.0	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
Δ_rS°	22.9	cal/mol*K	N/A	Larson and McMahon, 1984	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Δ_rS°	14.8	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	10.1 ± 0.8	kcal/mol	AVG	N/A	Average of 10 values; Individual data points

CH₃O^- + = Methyl Alcohol

By formula: CH₃O^- + H⁺ = CH₄O

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	382. ± 2.	kcal/mol	AVG	N/A	Average of 6 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	376.02 ± 0.62	kcal/mol	H-TS	Nee, Osterwalder, et al., 2006	gas phase; B
Δ_rG°	376.04 ± 0.55	kcal/mol	H-TS	Osborn, Leahy, et al., 1998	gas phase; B
Δ_rG°	374.0 ± 2.0	kcal/mol	IMRE	Bartmess, Scott, et al., 1979	gas phase; The acidity is 1.2 kcal/mol stronger than that from the D-EA cycle, due to the multi-compound fit for the acidity scale.; value altered from reference due to change in acidity scale; B
Δ_rG°	374.6 ± 2.1	kcal/mol	H-TS	Haas and Harrison, 1993	gas phase; Both metastable and 50 eV collision energy.; B
Δ_rG°	375.10 ± 0.60	kcal/mol	TDEq	Meot-ner and Sieck, 1986	gas phase; Experimental entropy: 21.5 eu, 0.6 less than H2O; B

CH₅O⁺ + Methyl Alcohol = (CH₅O⁺ • )

By formula: CH₅O⁺ + CH₄O = (CH₅O⁺ • CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32.6	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rH°	32.3	kcal/mol	PHPMS	Szulejko and McMahon, 1992	gas phase; M
Δ_rH°	32.1	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; M
Δ_rH°	33.1	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Δ_rH°	33.7	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O; Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rS°	29.2	cal/mol*K	PHPMS	Szulejko and McMahon, 1992	gas phase; M
Δ_rS°	26.6	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; M
Δ_rS°	30.5	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Δ_rS°	28.5	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O; Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	25.2	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O; Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

CH₃O^- + Methyl Alcohol = (CH₃O^- • )

By formula: CH₃O^- + CH₄O = (CH₃O^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	29.3 ± 1.0	kcal/mol	TDAs	Paul and Kebarle, 1990	gas phase; B,M
Δ_rH°	28.80 ± 0.30	kcal/mol	TDAs	Meot-ner and Sieck, 1986	gas phase; B,M
Δ_rH°	29.4 ± 2.5	kcal/mol	TDAs	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B
Δ_rH°	19.0 ± 2.0	kcal/mol	N/A	Moylan, Dodd, et al., 1985	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	31.8	cal/mol*K	PHPMS	Paul and Kebarle, 1990	gas phase; M
Δ_rS°	26.7	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	20.30	kcal/mol	IMRE	Mustanir, Matsuoka, et al., 2006	gas phase; B
Δ_rG°	19.8 ± 1.0	kcal/mol	TDAs	Paul and Kebarle, 1990	gas phase; B
Δ_rG°	20.80 ± 0.50	kcal/mol	TDAs	Meot-ner and Sieck, 1986	gas phase; B
Δ_rG°	20.3 ± 1.6	kcal/mol	TDAs	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
19.1	296.	FA	MacKay and Bohme, 1978	gas phase; From thermochemical cycle,switching reaction(CH3O-)H2O; Meot-Ner(Mautner), 1986; M

C₄H₉O^- + Methyl Alcohol = (C₄H₉O^- • )

By formula: C₄H₉O^- + CH₄O = (C₄H₉O^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	25.5 ± 1.0	kcal/mol	TDEq	Meot-Ner and Sieck, 1986	gas phase; B,M
Δ_rH°	23.4 ± 2.2	kcal/mol	CIDT	DeTuri and Ervin, 1999	gas phase; B
Δ_rH°	26.0 ± 2.5	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.9	cal/mol*K	N/A	Meot-Ner and Sieck, 1986	gas phase; Entropy change calculated or estimated; M
Δ_rS°	29.3	cal/mol*K	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	10.20	kcal/mol	IMRE	Mustanir, Matsuoka, et al., 2006	gas phase; B
Δ_rG°	17.1 ± 1.6	kcal/mol	TDEq	Meot-Ner and Sieck, 1986	gas phase; B
Δ_rG°	17.3 ± 1.6	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; B,M

C₂H₅O^- + Methyl Alcohol = (C₂H₅O^- • )

By formula: C₂H₅O^- + CH₄O = (C₂H₅O^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	27.3 ± 2.9	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M
Δ_rH°	25.6 ± 1.9	kcal/mol	CIDT	DeTuri and Ervin, 1999	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.3	cal/mol*K	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	18.6 ± 2.0	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
13.4	296.	FA	Mackay, Rakshit, et al., 1982	gas phase; From thermochemical cycle,switching reaction(CH3O-)CH3OH; Caldwell and Kebarle, 1986, Taft, 1983; M

( • Methyl Alcohol ) + = ( • 2)

By formula: (Cl^- • CH₄O) + CH₄O = (Cl^- • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.10 ± 0.40	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	13.70 ± 0.20	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B,M
Δ_rH°	14.1 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Δ_rH°	13.00 ± 0.70	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.2	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Δ_rS°	22.0	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M
Δ_rS°	19.4	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	7.30	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	7.10	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
Δ_rG°	6.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
Δ_rG°	7.20 ± 0.40	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( • 2 Methyl Alcohol ) + = ( • 3)

By formula: (Cl^- • 2CH₄O) + CH₄O = (Cl^- • 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.50 ± 0.20	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	10.80 ± 0.30	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B,M
Δ_rH°	11.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Δ_rH°	12.30 ± 0.60	kcal/mol	N/A	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.9	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Δ_rS°	22.7	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M
Δ_rS°	23.6	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.06	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	4.00	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
Δ_rG°	4.9 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
Δ_rG°	5.20 ± 0.30	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

C₈H₅^- + Methyl Alcohol = (C₈H₅^- • )

By formula: C₈H₅^- + CH₄O = (C₈H₅^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.5 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; B
Δ_rH°	21.4 ± 2.9	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.3	cal/mol*K	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	11.0 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; B
Δ_rG°	12.7 ± 2.0	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M

CN^- + Methyl Alcohol = (CN^- • )

By formula: CN^- + CH₄O = (CN^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.70 ± 0.80	kcal/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Δ_rH°	16.6 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B
Δ_rH°	16.5 ± 3.5	kcal/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.	cal/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Δ_rS°	24.3	cal/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.80 ± 0.20	kcal/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
Δ_rG°	10.4 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B
Δ_rG°	9.2 ± 2.3	kcal/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

+ Methyl Alcohol = ( • )

By formula: Li⁺ + CH₄O = (Li⁺ • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	36.8 ± 1.9	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	38.1	kcal/mol	ICR	Woodin and Beauchamp, 1978	gas phase; switching reaction(Li+)H20, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
Δ_rH°	38.	kcal/mol	ICR	Staley and Beauchamp, 1975	gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 extrapolated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.	cal/mol*K	N/A	Woodin and Beauchamp, 1978	gas phase; switching reaction(Li+)H20, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	30.3	kcal/mol	ICR	Woodin and Beauchamp, 1978	gas phase; switching reaction(Li+)H20, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M

+ Methyl Alcohol = ( • )

By formula: I^- + CH₄O = (I^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.90 ± 0.20	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	11.3 ± 1.0	kcal/mol	TDAs	Caldwell and Kebarle, 1984	gas phase; B,M
Δ_rH°	11.2	kcal/mol	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Δ_rH°	11.	kcal/mol	PHPMS	Caldwell, Masucci, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	17.1	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Δ_rS°	17.8	cal/mol*K	PHPMS	Caldwell and Kebarle, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.76	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	6.0 ± 1.0	kcal/mol	TDAs	Caldwell and Kebarle, 1984	gas phase; B
Δ_rG°	5.7 ± 2.0	kcal/mol	IMRE	Tanabe, Morgon, et al., 1996	gas phase; Anchored to H2O..I- of Caldwell and Kebarle, 1984; B

C₂H₅O⁺ + Methyl Alcohol = (C₂H₅O⁺ • )

By formula: C₂H₅O⁺ + CH₄O = (C₂H₅O⁺ • CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	30.3	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.9	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	22.3	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₂H₇O⁺ + Methyl Alcohol = (C₂H₇O⁺ • )

By formula: C₂H₇O⁺ + CH₄O = (C₂H₇O⁺ • CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	29.6	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.6	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	21.7	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₃H₇O^- + Methyl Alcohol = (C₃H₇O^- • )

By formula: C₃H₇O^- + CH₄O = (C₃H₇O^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	26.9 ± 2.9	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.3	cal/mol*K	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	18.2 ± 2.0	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M

+ Methyl Alcohol = ( • )

By formula: F^- + CH₄O = (F^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	29.6 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1983	gas phase; B,M
Δ_rH°	29.4 ± 2.2	kcal/mol	CIDT	DeTuri and Ervin, 1999	gas phase; B
Δ_rH°	23.3 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.0	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Δ_rS°	22.6	cal/mol*K	N/A	Larson and McMahon, 1983	gas phase; switching reaction(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	22.8 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1983	gas phase; B,M
Δ_rG°	15.8 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 3 Methyl Alcohol ) + = ( • 4)

By formula: (Cl^- • 3CH₄O) + CH₄O = (Cl^- • 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Δ_rH°	10.50	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
Δ_rH°	11.20 ± 0.60	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.9	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Δ_rS°	26.4	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	3.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
Δ_rG°	3.70	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
Δ_rG°	3.30 ± 0.20	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

+ Methyl Alcohol = ( • )

By formula: Br^- + CH₄O = (Br^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.50 ± 0.10	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	13.9 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	17.6	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.00 ± 0.10	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	8.7 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B
Δ_rG°	8.4 ± 2.0	kcal/mol	IMRE	Tanabe, Morgon, et al., 1996	gas phase; Anchored to H2O..Br- of Hiraoka, Mizure, et al., 19882; B

C₃H₉Si⁺ + Methyl Alcohol = (C₃H₉Si⁺ • )

By formula: C₃H₉Si⁺ + CH₄O = (C₃H₉Si⁺ • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	39.2	kcal/mol	PHPMS	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.7	cal/mol*K	N/A	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
25.3	468.	PHPMS	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

+ Methyl Alcohol = ( • )

By formula: Na⁺ + CH₄O = (Na⁺ • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	23.2 ± 1.3	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	21.9 ± 1.4	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD
Δ_rH°	24.0 ± 0.2	kcal/mol	HPMS	Hoyau, Norrman, et al., 1999	RCD
Δ_rH°	26.6 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20500.	cal/mol*K	HPMS	Hoyau, Norrman, et al., 1999	RCD
Δ_rS°	24.3	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
17.3	298.	IMRE	McMahon and Ohanessian, 2000	Anchor alanine=39.89; RCD

( • 4 Methyl Alcohol ) + = ( • 5)

By formula: (Cl^- • 4CH₄O) + CH₄O = (Cl^- • 5CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.2 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Δ_rH°	10.50 ± 0.50	kcal/mol	N/A	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.7	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Δ_rS°	25.5	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	2.7 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
Δ_rG°	2.90 ± 0.10	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

+ = 2 Methyl Alcohol +

By formula: H₂O + C₅H₁₂O₂ = 2CH₄O + C₃H₆O

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	4.86 ± 0.01	kcal/mol	Cm	Wiberg, Morgan, et al., 1994	liquid phase; ALS
Δ_rH°	4.88 ± 0.01	kcal/mol	Cm	Wiberg and Squires, 1979	liquid phase; Heat of hydrolysis; ALS
Δ_rH°	4.8836 ± 0.0067	kcal/mol	Cm	Wiberg and Squires, 1979, 2	liquid phase; solvent: Water; Hydrolysis; ALS
Δ_rH°	-3.95 ± 0.05	kcal/mol	Cm	Stern and Dorer, 1962	liquid phase; Reanalyzed by Cox and Pilcher, 1970, Original value = 3.69 ± 0.05 kcal/mol; Heat of hydrolysis; ALS

(CH₅O⁺ • Methyl Alcohol ) + = (CH₅O⁺ • 2)

By formula: (CH₅O⁺ • CH₄O) + CH₄O = (CH₅O⁺ • 2CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.2	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rH°	21.0	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; M
Δ_rH°	21.3	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rS°	25.8	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; M
Δ_rS°	28.2	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

C₅H₁₁O^- + Methyl Alcohol = (C₅H₁₁O^- • )

By formula: C₅H₁₁O^- + CH₄O = (C₅H₁₁O^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	25.7 ± 2.9	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	17.0 ± 2.0	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B

C₆H₁₁S₂^- + Methyl Alcohol = (C₆H₁₁S₂^- • )

By formula: C₆H₁₁S₂^- + CH₄O = (C₆H₁₁S₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.9 ± 2.5	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13.2 ± 1.6	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B

( • Methyl Alcohol ) + = ( • 2)

By formula: (Cu⁺ • CH₄O) + CH₄O = (Cu⁺ • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.8	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.	cal/mol*K	N/A	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.3	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M

(CH₅O⁺ • 2 • 3 Methyl Alcohol ) + = (CH₅O⁺ • 3 • 3)

By formula: (CH₅O⁺ • 2H₂O • 3CH₄O) + H₂O = (CH₅O⁺ • 3H₂O • 3CH₄O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.1	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.	cal/mol*K	N/A	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.1	272.	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M

(CH₅O⁺ • 3 • 2 Methyl Alcohol ) + = (CH₅O⁺ • 4 • 2)

By formula: (CH₅O⁺ • 3H₂O • 2CH₄O) + H₂O = (CH₅O⁺ • 4H₂O • 2CH₄O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.3	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.	cal/mol*K	N/A	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.2	272.	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M

(CH₅O⁺ • 4 • Methyl Alcohol ) + = (CH₅O⁺ • 5 • )

By formula: (CH₅O⁺ • 4H₂O • CH₄O) + H₂O = (CH₅O⁺ • 5H₂O • CH₄O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.4	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.	cal/mol*K	N/A	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.5	269.	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M

(CH₅O⁺ • ) + Methyl Alcohol = (CH₅O⁺ • • )

By formula: (CH₅O⁺ • H₂O) + CH₄O = (CH₅O⁺ • CH₄O • H₂O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	24.5	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.	cal/mol*K	N/A	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
11.6	452.	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M

C₆H₅NO₂^- + Methyl Alcohol = (C₆H₅NO₂^- • )

By formula: C₆H₅NO₂^- + CH₄O = (C₆H₅NO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.10 ± 0.20	kcal/mol	TDAs	Sieck, 1985	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.1	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	7.30 ± 0.40	kcal/mol	TDAs	Sieck, 1985	gas phase; B
Δ_rG°	6.3 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.3	343.	PHPMS	Chowdhury, 1987	gas phase; M

+ Methyl Alcohol = ( • )

By formula: Cu⁺ + CH₄O = (Cu⁺ • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.4	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.	cal/mol*K	N/A	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.9	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M

( • Methyl Alcohol ) + = ( • 2)

By formula: (F^- • CH₄O) + CH₄O = (F^- • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.30 ± 0.30	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	19.3 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.2	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	12.97	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	12.4 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 2 Methyl Alcohol ) + = ( • 3)

By formula: (F^- • 2CH₄O) + CH₄O = (F^- • 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.10 ± 0.60	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	14.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.2	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.06	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	8.2 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 2 Methyl Alcohol ) + = ( • 3)

By formula: (Br^- • 2CH₄O) + CH₄O = (Br^- • 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.50 ± 0.50	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	10.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.6	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	4.25	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	4.2 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • Methyl Alcohol ) + = ( • 2)

By formula: (Br^- • CH₄O) + CH₄O = (Br^- • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.00 ± 0.20	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	12.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.7	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.62	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	6.3 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 2 Methyl Alcohol ) + = ( • 3)

By formula: (I^- • 2CH₄O) + CH₄O = (I^- • 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	7.70 ± 0.60	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	9.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.4	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	3.41	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	3.1 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • Methyl Alcohol ) + = ( • 2)

By formula: (I^- • CH₄O) + CH₄O = (I^- • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.50 ± 0.20	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	11.1 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.6	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	4.25	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	4.4 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 10 Methyl Alcohol ) + = ( • 11)

By formula: (Cl^- • 10CH₄O) + CH₄O = (Cl^- • 11CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	7.3 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; Estimated entropy; single temperature measurement; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.	cal/mol*K	N/A	Hiraoka and Mizuse, 1987	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.3 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; Estimated entropy; single temperature measurement; B

( • Methyl Alcohol ) + = ( • 2)

By formula: (Na⁺ • CH₄O) + CH₄O = (Na⁺ • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.5 ± 1.4	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	21.4 ± 1.6	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	20.5 ± 1.6	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	20.2 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.7	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

H₄ClO₂^- + Methyl Alcohol + 2 = CH₈ClO₃^-

By formula: H₄ClO₂^- + CH₄O + 2H₂O = CH₈ClO₃^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.40 ± 0.20	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
Δ_rH°	11.40 ± 0.30	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; For solvation by MeOH of core ion; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.80	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
Δ_rG°	6.00	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; For solvation by MeOH of core ion; B

(CH₅O⁺ • 2 Methyl Alcohol ) + = (CH₅O⁺ • • 2)

By formula: (CH₅O⁺ • 2CH₄O) + C₂H₆O = (CH₅O⁺ • C₂H₆O • 2CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17.2	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	28.6	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M

(CH₅O⁺ • 3 Methyl Alcohol ) + = (CH₅O⁺ • • 3)

By formula: (CH₅O⁺ • 3CH₄O) + C₂H₆O = (CH₅O⁺ • C₂H₆O • 3CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.7	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.8	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M

(CH₅O⁺ • 2 Methyl Alcohol ) + = (CH₅O⁺ • 3)

By formula: (CH₅O⁺ • 2CH₄O) + CH₄O = (CH₅O⁺ • 3CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.0	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rH°	16.1	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rS°	28.9	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ • 3 Methyl Alcohol ) + = (CH₅O⁺ • 4)

By formula: (CH₅O⁺ • 3CH₄O) + CH₄O = (CH₅O⁺ • 4CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.3	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rH°	13.5	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.3	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rS°	28.7	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ • 4 Methyl Alcohol ) + = (CH₅O⁺ • 5)

By formula: (CH₅O⁺ • 4CH₄O) + CH₄O = (CH₅O⁺ • 5CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.2	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rH°	12.5	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.5	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rS°	31.1	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ • Methyl Alcohol ) + = (CH₅O⁺ • • )

By formula: (CH₅O⁺ • CH₄O) + C₂H₆O = (CH₅O⁺ • C₂H₆O • CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.9	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.2	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M

(CH₅O⁺ • 5 Methyl Alcohol ) + = (CH₅O⁺ • 6)

By formula: (CH₅O⁺ • 5CH₄O) + CH₄O = (CH₅O⁺ • 6CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.3	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rH°	11.9	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.5	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rS°	32.9	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ • 6 Methyl Alcohol ) + = (CH₅O⁺ • 7)

By formula: (CH₅O⁺ • 6CH₄O) + CH₄O = (CH₅O⁺ • 7CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.0	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rH°	12.0	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.7	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rS°	35.7	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

( • 11 Methyl Alcohol ) + = ( • 12)

By formula: (F^- • 11CH₄O) + CH₄O = (F^- • 12CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.	cal/mol*K	N/A	Hiraoka and Yamabe, 1991	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.1 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Ion clustering data, Gas Chromatography, References, Notes

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to CH₄O⁺ (ion structure unspecified)

Quantity	Value	Units	Method	Reference	Comment
IE (evaluated)	10.84 ± 0.01	eV	N/A	N/A	L
Quantity	Value	Units	Method	Reference	Comment
Proton affinity (review)	180.3	kcal/mol	N/A	Hunter and Lias, 1998	HL
Quantity	Value	Units	Method	Reference	Comment
Gas basicity	173.2	kcal/mol	N/A	Hunter and Lias, 1998	HL

Ionization energy determinations

IE (eV)	Method	Reference	Comment
10.85 ± 0.03	PI	Tao, Klemm, et al., 1992	LL
10.82 ± 0.05	EI	Holmes and Lossing, 1991	LL
10.84 ± 0.07	EI	Bowen and Maccoll, 1984	LBLHLM
10.9	EI	Mishchanchuk, Pokrovskii, et al., 1982	LBLHLM
10.84 ± 0.08	EI	Allam, Migahed, et al., 1982	LBLHLM
10.90 ± 0.03	EI	Sahini, Constantin, et al., 1978	LLK
10.85 ± 0.01	PI	Berkowitz, 1978	LLK
10.846 ± 0.002	PE	MacNeil and Dixon, 1977	LLK
10.90 ± 0.12	EI	Finney and Harrison, 1972	LLK
10.83 ± 0.03	PI	Warneck, 1971	LLK
10.85 ± 0.02	PE	Cocksey, Eland, et al., 1971	LLK
10.85	PE	Baker, Betteridge, et al., 1971	LLK
10.85	PE	Baker, Betteridge, et al., 1971	LLK
10.829 ± 0.015	PI	Omura, Kaneko, et al., 1969	RDSH
10.85	EI	Lifshitz, Shapiro, et al., 1969	RDSH
10.83	PE	Dewar and Worley, 1969	RDSH
10.84 ± 0.02	PI	Refaey and Chupka, 1968	RDSH
10.85	CI	Cermak, 1968	RDSH
10.83	PE	Al-Joboury and Turner, 1964	RDSH
10.85 ± 0.02	PI	Watanabe, 1954	RDSH
10.96	EI	Vorob'ev, Furlei, et al., 1989	Vertical value; LL
11.0	PE	Von Niessen, Bieri, et al., 1980	Vertical value; LLK
10.95	PE	Utsunomiya, Kobayashi, et al., 1980	Vertical value; LLK
10.95	PE	Kobayashi, 1978	Vertical value; LLK
10.86	PE	Benoit and Harrison, 1977	Vertical value; LLK
10.97 ± 0.03	PE	Peel and Willett, 1975	Vertical value; LLK
10.96	PE	Robin and Kuebler, 1973	Vertical value; LLK
10.95	PE	Ogata, Onizuka, et al., 1973	Vertical value; LLK
10.94	PE	Katsumata, Iwai, et al., 1973	Vertical value; LLK
10.95	PE	Ogata, Onizuka, et al., 1972	Vertical value; LLK
10.96	PE	Baker, Betteridge, et al., 1971	Vertical value; LLK

Appearance energy determinations

Ion	AE (eV)	Other Products	Method	Reference	Comment
CH⁺	22.31 ± 0.09	?	EI	Reed and Snedden, 1956	RDSH
CHO⁺	13.06 ± 0.10	H₂+H	PI	Warneck, 1971	LLK
CHO⁺	14.0 ± 0.2	H₂+H	EI	Lifshitz, Shapiro, et al., 1969	RDSH
CH₂⁺	14.05 ± 0.05	H₂O	PI	Warneck, 1971	LLK
CH₂⁺	15.3	H₂O	EI	Haney and Franklin, 1968	RDSH
CH₂O⁺	10.9	H₂	EI	Mishchanchuk, Pokrovskii, et al., 1982	LBLHLM
CH₂O⁺	12.05 ± 0.12	H₂	PI	Warneck, 1971	LLK
CH₂O⁺	12.45	H₂	PI	Refaey and Chupka, 1968	RDSH
CH₃⁺	13.82 ± 0.04	OH	PI	Warneck, 1971	LLK
CH₃⁺	13.5	OH	EI	Friedman, Long, et al., 1957	RDSH
CH₃O⁺	11.67 ± 0.09	H	EI	Bowen and Maccoll, 1984	LBLHLM
CH₃O⁺	10.4	H	EI	Mishchanchuk, Pokrovskii, et al., 1982	LBLHLM
CH₃O⁺	11.85 ± 0.08	H	EI	Allam, Migahed, et al., 1982	LBLHLM
CH₃O⁺	11.88 ± 0.05	H	EI	Selim and Helal, 1981	LLK
CH₃O⁺	11.69	H	EI	Lossing, 1977	LLK
CH₃O⁺	11.76 ± 0.11	H	EI	Finney and Harrison, 1972	LLK
CH₃O⁺	11.55 ± 0.03	H	PI	Warneck, 1971	LLK
CH₃O⁺	11.66 ± 0.04	H	PI	Omura, Kaneko, et al., 1969	RDSH
CH₃O⁺	11.67	H	EI	Lifshitz, Shapiro, et al., 1969	RDSH
CH₃O⁺	11.67 ± 0.03	H	PI	Refaey and Chupka, 1968	RDSH
CH₃O⁺[CH₂OH⁺]	11.649 ± 0.003	H	PI	Berkowitz, Ellison, et al., 1994	Unpublished results of B. Ruscic and J. Berkowitz; LL
CO⁺	13.7	2H₂	EI	Friedman, Long, et al., 1957	RDSH
CO⁺	14.31 ± 0.05	2H₂	EI	Friedland and Strakna, 1956	RDSH

De-protonation reactions

CH₃O^- + = Methyl Alcohol

By formula: CH₃O^- + H⁺ = CH₄O

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	382. ± 2.	kcal/mol	AVG	N/A	Average of 6 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	376.02 ± 0.62	kcal/mol	H-TS	Nee, Osterwalder, et al., 2006	gas phase; B
Δ_rG°	376.04 ± 0.55	kcal/mol	H-TS	Osborn, Leahy, et al., 1998	gas phase; B
Δ_rG°	374.0 ± 2.0	kcal/mol	IMRE	Bartmess, Scott, et al., 1979	gas phase; The acidity is 1.2 kcal/mol stronger than that from the D-EA cycle, due to the multi-compound fit for the acidity scale.; value altered from reference due to change in acidity scale; B
Δ_rG°	374.6 ± 2.1	kcal/mol	H-TS	Haas and Harrison, 1993	gas phase; Both metastable and 50 eV collision energy.; B
Δ_rG°	375.10 ± 0.60	kcal/mol	TDEq	Meot-ner and Sieck, 1986	gas phase; Experimental entropy: 21.5 eu, 0.6 less than H2O; B

Ion clustering data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, References, Notes

Data compiled as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

+ Methyl Alcohol = ( • )

By formula: Br^- + CH₄O = (Br^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.50 ± 0.10	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	13.9 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	17.6	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.00 ± 0.10	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	8.7 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B
Δ_rG°	8.4 ± 2.0	kcal/mol	IMRE	Tanabe, Morgon, et al., 1996	gas phase; Anchored to H2O..Br- of Hiraoka, Mizure, et al., 19882; B

( • Methyl Alcohol ) + = ( • 2)

By formula: (Br^- • CH₄O) + CH₄O = (Br^- • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.00 ± 0.20	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	12.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.7	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.62	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	6.3 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 2 Methyl Alcohol ) + = ( • 3)

By formula: (Br^- • 2CH₄O) + CH₄O = (Br^- • 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.50 ± 0.50	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	10.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.6	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	4.25	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	4.2 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 3 Methyl Alcohol ) + = ( • 4)

By formula: (Br^- • 3CH₄O) + CH₄O = (Br^- • 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.9 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.2	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	3.0 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 4 Methyl Alcohol ) + = ( • 5)

By formula: (Br^- • 4CH₄O) + CH₄O = (Br^- • 5CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.2	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	2.3 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 5 Methyl Alcohol ) + = ( • 6)

By formula: (Br^- • 5CH₄O) + CH₄O = (Br^- • 6CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.1 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.6	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	2.1 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 6 Methyl Alcohol ) + = ( • 7)

By formula: (Br^- • 6CH₄O) + CH₄O = (Br^- • 7CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.9	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.7 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 7 Methyl Alcohol ) + = ( • 8)

By formula: (Br^- • 7CH₄O) + CH₄O = (Br^- • 8CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.4 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.1	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.5 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 8 Methyl Alcohol ) + = ( • 9)

By formula: (Br^- • 8CH₄O) + CH₄O = (Br^- • 9CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.2 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.	cal/mol*K	N/A	Hiraoka and Yamabe, 1991	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.3 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B

( • 9 Methyl Alcohol ) + = ( • 10)

By formula: (Br^- • 9CH₄O) + CH₄O = (Br^- • 10CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.0 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.	cal/mol*K	N/A	Hiraoka and Yamabe, 1991	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.1 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B

CHO^- + Methyl Alcohol = (CHO^- • )

By formula: CHO^- + CH₄O = (CHO^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	28.8	kcal/mol	PHPMS	Meot-ner and Sieck, 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.7	cal/mol*K	PHPMS	Meot-ner and Sieck, 1986	gas phase; M

+ Methyl Alcohol = ( • )

By formula: CHO₂^- + CH₄O = (CHO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17.6 ± 1.0	kcal/mol	N/A	Meot-Ner and Sieck, 1986	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.6	cal/mol*K	PHPMS	Meot-Ner and Sieck, 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	10.5 ± 1.6	kcal/mol	TDAs	Meot-Ner and Sieck, 1986	gas phase; B

CH₃O^- + Methyl Alcohol = (CH₃O^- • )

By formula: CH₃O^- + CH₄O = (CH₃O^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	29.3 ± 1.0	kcal/mol	TDAs	Paul and Kebarle, 1990	gas phase; B,M
Δ_rH°	28.80 ± 0.30	kcal/mol	TDAs	Meot-ner and Sieck, 1986	gas phase; B,M
Δ_rH°	29.4 ± 2.5	kcal/mol	TDAs	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B
Δ_rH°	19.0 ± 2.0	kcal/mol	N/A	Moylan, Dodd, et al., 1985	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	31.8	cal/mol*K	PHPMS	Paul and Kebarle, 1990	gas phase; M
Δ_rS°	26.7	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	20.30	kcal/mol	IMRE	Mustanir, Matsuoka, et al., 2006	gas phase; B
Δ_rG°	19.8 ± 1.0	kcal/mol	TDAs	Paul and Kebarle, 1990	gas phase; B
Δ_rG°	20.80 ± 0.50	kcal/mol	TDAs	Meot-ner and Sieck, 1986	gas phase; B
Δ_rG°	20.3 ± 1.6	kcal/mol	TDAs	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
19.1	296.	FA	MacKay and Bohme, 1978	gas phase; From thermochemical cycle,switching reaction(CH3O-)H2O; Meot-Ner(Mautner), 1986; M

(CH₃O^- • Methyl Alcohol ) + = (CH₃O^- • 2)

By formula: (CH₃O^- • CH₄O) + CH₄O = (CH₃O^- • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.4	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.8	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M

(CH₃O^- • 2 Methyl Alcohol ) + = (CH₃O^- • 3)

By formula: (CH₃O^- • 2CH₄O) + CH₄O = (CH₃O^- • 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.0	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.3	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M

(CH₃O^- • 3 Methyl Alcohol ) + = (CH₃O^- • 4)

By formula: (CH₃O^- • 3CH₄O) + CH₄O = (CH₃O^- • 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.4	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.4	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M

(CH₃O^- • ) + Methyl Alcohol = (CH₃O^- • • )

By formula: (CH₃O^- • H₂O) + CH₄O = (CH₃O^- • CH₄O • H₂O)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
13.7	296.	FA	MacKay and Bohme, 1978	gas phase; From thermochemical cycle,switching reaction(CH3O-)2H2O; Meot-Ner(Mautner), 1986; M

CH₅O⁺ + Methyl Alcohol = (CH₅O⁺ • )

By formula: CH₅O⁺ + CH₄O = (CH₅O⁺ • CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32.6	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rH°	32.3	kcal/mol	PHPMS	Szulejko and McMahon, 1992	gas phase; M
Δ_rH°	32.1	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; M
Δ_rH°	33.1	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Δ_rH°	33.7	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O; Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rS°	29.2	cal/mol*K	PHPMS	Szulejko and McMahon, 1992	gas phase; M
Δ_rS°	26.6	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; M
Δ_rS°	30.5	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Δ_rS°	28.5	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O; Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	25.2	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O; Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

(CH₅O⁺ • Methyl Alcohol ) + = (CH₅O⁺ • 2)

By formula: (CH₅O⁺ • CH₄O) + CH₄O = (CH₅O⁺ • 2CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.2	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rH°	21.0	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; M
Δ_rH°	21.3	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rS°	25.8	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; M
Δ_rS°	28.2	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ • 2 Methyl Alcohol ) + = (CH₅O⁺ • 3)

By formula: (CH₅O⁺ • 2CH₄O) + CH₄O = (CH₅O⁺ • 3CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.0	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rH°	16.1	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rS°	28.9	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ • 3 Methyl Alcohol ) + = (CH₅O⁺ • 4)

By formula: (CH₅O⁺ • 3CH₄O) + CH₄O = (CH₅O⁺ • 4CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.3	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rH°	13.5	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.3	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rS°	28.7	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ • 4 Methyl Alcohol ) + = (CH₅O⁺ • 5)

By formula: (CH₅O⁺ • 4CH₄O) + CH₄O = (CH₅O⁺ • 5CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.2	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rH°	12.5	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.5	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rS°	31.1	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ • 5 Methyl Alcohol ) + = (CH₅O⁺ • 6)

By formula: (CH₅O⁺ • 5CH₄O) + CH₄O = (CH₅O⁺ • 6CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.3	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rH°	11.9	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.5	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rS°	32.9	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ • 6 Methyl Alcohol ) + = (CH₅O⁺ • 7)

By formula: (CH₅O⁺ • 6CH₄O) + CH₄O = (CH₅O⁺ • 7CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.0	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rH°	12.0	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.7	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Δ_rS°	35.7	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ • 7 Methyl Alcohol ) + = (CH₅O⁺ • 8)

By formula: (CH₅O⁺ • 7CH₄O) + CH₄O = (CH₅O⁺ • 8CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.4	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.9	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

(CH₅O⁺ • 8 Methyl Alcohol ) + = (CH₅O⁺ • 9)

By formula: (CH₅O⁺ • 8CH₄O) + CH₄O = (CH₅O⁺ • 9CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.1	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.9	200.	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

(CH₅O⁺ • 9 Methyl Alcohol ) + = (CH₅O⁺ • 10)

By formula: (CH₅O⁺ • 9CH₄O) + CH₄O = (CH₅O⁺ • 10CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.7	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.5	200.	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

(CH₅O⁺ • 10 Methyl Alcohol ) + = (CH₅O⁺ • 11)

By formula: (CH₅O⁺ • 10CH₄O) + CH₄O = (CH₅O⁺ • 11CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.6	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.8	184.	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

(CH₅O⁺ • 11 Methyl Alcohol ) + = (CH₅O⁺ • 12)

By formula: (CH₅O⁺ • 11CH₄O) + CH₄O = (CH₅O⁺ • 12CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.5	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.7	184.	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

(CH₅O⁺ • 12 Methyl Alcohol ) + = (CH₅O⁺ • 13)

By formula: (CH₅O⁺ • 12CH₄O) + CH₄O = (CH₅O⁺ • 13CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.6	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.8	184.	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

(CH₅O⁺ • Methyl Alcohol • ) + = (CH₅O⁺ • 2 • )

By formula: (CH₅O⁺ • CH₄O • H₂O) + CH₄O = (CH₅O⁺ • 2CH₄O • H₂O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	16.4	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.5	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M

(CH₅O⁺ • ) + Methyl Alcohol = (CH₅O⁺ • • )

By formula: (CH₅O⁺ • H₂O) + CH₄O = (CH₅O⁺ • CH₄O • H₂O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	24.5	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.	cal/mol*K	N/A	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
11.6	452.	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M

(CH₅O⁺ • 2) + Methyl Alcohol = (CH₅O⁺ • • 2)

By formula: (CH₅O⁺ • 2H₂O) + CH₄O = (CH₅O⁺ • CH₄O • 2H₂O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	18.0	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.3	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M

CH₆N⁺ + Methyl Alcohol = (CH₆N⁺ • )

By formula: CH₆N⁺ + CH₄O = (CH₆N⁺ • CH₄O)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	19.0	kcal/mol	PHPMS	Meot-Ner, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.2	cal/mol*K	PHPMS	Meot-Ner, 1984	gas phase; M

CN^- + Methyl Alcohol = (CN^- • )

By formula: CN^- + CH₄O = (CN^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.70 ± 0.80	kcal/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Δ_rH°	16.6 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B
Δ_rH°	16.5 ± 3.5	kcal/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.	cal/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Δ_rS°	24.3	cal/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.80 ± 0.20	kcal/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
Δ_rG°	10.4 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B
Δ_rG°	9.2 ± 2.3	kcal/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

C₂H^- + Methyl Alcohol = C₃H₅O^-

By formula: C₂H^- + CH₄O = C₃H₅O^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.6 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; Anchored to MeOH ΔGacid=375.2; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	10.90	kcal/mol	IMRE	Mustanir, Matsuoka, et al., 2006	gas phase; B
Δ_rG°	11.6 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; Anchored to MeOH ΔGacid=375.2; B

+ Methyl Alcohol = ( • )

By formula: C₂H₃O₂^- + CH₄O = (C₂H₃O₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17.6 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	10.5 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

(C₂H₄N⁺ • Methyl Alcohol ) + = (C₂H₄N⁺ • 2)

By formula: (C₂H₄N⁺ • CH₄O) + CH₄O = (C₂H₄N⁺ • 2CH₄O)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.9	kcal/mol	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.0	cal/mol*K	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M

(C₂H₄N⁺ • 2 Methyl Alcohol ) + = (C₂H₄N⁺ • 3)

By formula: (C₂H₄N⁺ • 2CH₄O) + CH₄O = (C₂H₄N⁺ • 3CH₄O)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.9	kcal/mol	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.4	cal/mol*K	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M

(C₂H₄N⁺ • Methyl Alcohol • ) + = (C₂H₄N⁺ • 2 • )

By formula: (C₂H₄N⁺ • CH₄O • C₂H₃N) + CH₄O = (C₂H₄N⁺ • 2CH₄O • C₂H₃N)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.7	kcal/mol	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.1	cal/mol*K	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M

C₂H₄NO₂^- + Methyl Alcohol = C₃H₈NO₃^-

By formula: C₂H₄NO₂^- + CH₄O = C₃H₈NO₃^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17.00 ± 0.50	kcal/mol	TDAs	Nieckarz, Atkins, et al., 2008	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	9.5 ± 1.0	kcal/mol	TDAs	Nieckarz, Atkins, et al., 2008	gas phase; B

C₂H₅O⁺ + Methyl Alcohol = (C₂H₅O⁺ • )

By formula: C₂H₅O⁺ + CH₄O = (C₂H₅O⁺ • CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	30.3	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.9	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	22.3	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₂H₅O^- + Methyl Alcohol = (C₂H₅O^- • )

By formula: C₂H₅O^- + CH₄O = (C₂H₅O^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	27.3 ± 2.9	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M
Δ_rH°	25.6 ± 1.9	kcal/mol	CIDT	DeTuri and Ervin, 1999	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.3	cal/mol*K	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	18.6 ± 2.0	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
13.4	296.	FA	Mackay, Rakshit, et al., 1982	gas phase; From thermochemical cycle,switching reaction(CH3O-)CH3OH; Caldwell and Kebarle, 1986, Taft, 1983; M

C₂H₇O⁺ + Methyl Alcohol = (C₂H₇O⁺ • )

By formula: C₂H₇O⁺ + CH₄O = (C₂H₇O⁺ • CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	26.3	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.1	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M

(C₂H₇O⁺ • Methyl Alcohol ) + = (C₂H₇O⁺ • 2)

By formula: (C₂H₇O⁺ • CH₄O) + CH₄O = (C₂H₇O⁺ • 2CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	18.8	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	28.9	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M

(C₂H₇O⁺ • 2 Methyl Alcohol ) + = (C₂H₇O⁺ • 3)

By formula: (C₂H₇O⁺ • 2CH₄O) + CH₄O = (C₂H₇O⁺ • 3CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.9	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	31.2	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M

(C₂H₇O⁺ • 3 Methyl Alcohol ) + = (C₂H₇O⁺ • 4)

By formula: (C₂H₇O⁺ • 3CH₄O) + CH₄O = (C₂H₇O⁺ • 4CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.7	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.8	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M

(C₂H₇O⁺ • Methyl Alcohol • ) + = (C₂H₇O⁺ • 2 • )

By formula: (C₂H₇O⁺ • CH₄O • C₂H₆O) + CH₄O = (C₂H₇O⁺ • 2CH₄O • C₂H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.1	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.6	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M

(C₂H₇O⁺ • 2 Methyl Alcohol • ) + = (C₂H₇O⁺ • 3 • )

By formula: (C₂H₇O⁺ • 2CH₄O • C₂H₆O) + CH₄O = (C₂H₇O⁺ • 3CH₄O • C₂H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.2	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.5	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M

(C₂H₇O⁺ • ) + Methyl Alcohol = (C₂H₇O⁺ • • )

By formula: (C₂H₇O⁺ • C₂H₆O) + CH₄O = (C₂H₇O⁺ • CH₄O • C₂H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	18.1	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.6	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M

C₂H₇O⁺ + Methyl Alcohol = (C₂H₇O⁺ • )

By formula: C₂H₇O⁺ + CH₄O = (C₂H₇O⁺ • CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	29.6	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.6	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	21.7	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₂H₇O₂^- + 2 Methyl Alcohol = C₃H₁₁O₃^-

By formula: C₂H₇O₂^- + 2CH₄O = C₃H₁₁O₃^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.4 ± 1.0	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13.10 ± 0.50	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B

C₂H₇O₂^- + + Methyl Alcohol = C₂H₉O₃^-

By formula: C₂H₇O₂^- + H₂O + CH₄O = C₂H₉O₃^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17.8 ± 1.0	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	10.10 ± 0.50	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B

C₂H₉O₃^- + 2 + Methyl Alcohol = C₂H₁₁O₄^-

By formula: C₂H₉O₃^- + 2H₂O + CH₄O = C₂H₁₁O₄^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.2 ± 1.0	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.90 ± 0.50	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B

+ Methyl Alcohol = ( • )

By formula: C₃H₃N₂^- + CH₄O = (C₃H₃N₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17.1	kcal/mol	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.2	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M

C₃H₇O⁺ + Methyl Alcohol = (C₃H₇O⁺ • )

By formula: C₃H₇O⁺ + CH₄O = (C₃H₇O⁺ • CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.1	kcal/mol	PHPMS	Meot-Ner (Mautner), Ross, et al., 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.3	cal/mol*K	PHPMS	Meot-Ner (Mautner), Ross, et al., 1985	gas phase; M

C₃H₇O^- + Methyl Alcohol = (C₃H₇O^- • )

By formula: C₃H₇O^- + CH₄O = (C₃H₇O^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	26.9 ± 2.9	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.3	cal/mol*K	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	18.2 ± 2.0	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M

C₃H₉Si⁺ + Methyl Alcohol = (C₃H₉Si⁺ • )

By formula: C₃H₉Si⁺ + CH₄O = (C₃H₉Si⁺ • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	39.2	kcal/mol	PHPMS	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.7	cal/mol*K	N/A	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
25.3	468.	PHPMS	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

C₃H₉Sn⁺ + Methyl Alcohol = (C₃H₉Sn⁺ • )

By formula: C₃H₉Sn⁺ + CH₄O = (C₃H₉Sn⁺ • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32.6	kcal/mol	PHPMS	Stone and Splinter, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	32.	cal/mol*K	PHPMS	Stone and Splinter, 1984	gas phase; M

C₃H₁₀N⁺ + Methyl Alcohol = (C₃H₁₀N⁺ • )

By formula: C₃H₁₀N⁺ + CH₄O = (C₃H₁₀N⁺ • CH₄O)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.1	kcal/mol	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.0	cal/mol*K	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M

(C₃H₁₀N⁺ • Methyl Alcohol ) + = (C₃H₁₀N⁺ • 2)

By formula: (C₃H₁₀N⁺ • CH₄O) + CH₄O = (C₃H₁₀N⁺ • 2CH₄O)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.7	kcal/mol	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.8	cal/mol*K	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M

(C₃H₁₀N⁺ • 2 Methyl Alcohol ) + = (C₃H₁₀N⁺ • 3)

By formula: (C₃H₁₀N⁺ • 2CH₄O) + CH₄O = (C₃H₁₀N⁺ • 3CH₄O)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.5	kcal/mol	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.0	cal/mol*K	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M

(C₃H₁₀N⁺ • Methyl Alcohol • ) + = (C₃H₁₀N⁺ • 2 • )

By formula: (C₃H₁₀N⁺ • CH₄O • C₃H₉N) + CH₄O = (C₃H₁₀N⁺ • 2CH₄O • C₃H₉N)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.5	kcal/mol	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M

(C₃H₁₀N⁺ • ) + Methyl Alcohol = (C₃H₁₀N⁺ • • )

By formula: (C₃H₁₀N⁺ • C₃H₉N) + CH₄O = (C₃H₁₀N⁺ • CH₄O • C₃H₉N)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.6	kcal/mol	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.2	cal/mol*K	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M

C₃H₁₁O₃^- + 3 Methyl Alcohol = C₄H₁₅O₄^-

By formula: C₃H₁₁O₃^- + 3CH₄O = C₄H₁₅O₄^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.0 ± 1.0	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	7.20 ± 0.50	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B

C₃H₁₁O₃^- + + 2 Methyl Alcohol = C₃H₁₃O₄^-

By formula: C₃H₁₁O₃^- + H₂O + 2CH₄O = C₃H₁₃O₄^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.8 ± 1.0	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.40 ± 0.50	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B

C₄H₂O₃^- + Methyl Alcohol = (C₄H₂O₃^- • )

By formula: C₄H₂O₃^- + CH₄O = (C₄H₂O₃^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	4.7 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.7	343.	PHPMS	Chowdhury, 1987	gas phase; M

+ Methyl Alcohol = ( • )

By formula: C₄H₄N^- + CH₄O = (C₄H₄N^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	18.6 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.5	cal/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	10.4 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B

C₄H₉O^- + Methyl Alcohol = (C₄H₉O^- • )

By formula: C₄H₉O^- + CH₄O = (C₄H₉O^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	25.5 ± 1.0	kcal/mol	TDEq	Meot-Ner and Sieck, 1986	gas phase; B,M
Δ_rH°	23.4 ± 2.2	kcal/mol	CIDT	DeTuri and Ervin, 1999	gas phase; B
Δ_rH°	26.0 ± 2.5	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.9	cal/mol*K	N/A	Meot-Ner and Sieck, 1986	gas phase; Entropy change calculated or estimated; M
Δ_rS°	29.3	cal/mol*K	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	10.20	kcal/mol	IMRE	Mustanir, Matsuoka, et al., 2006	gas phase; B
Δ_rG°	17.1 ± 1.6	kcal/mol	TDEq	Meot-Ner and Sieck, 1986	gas phase; B
Δ_rG°	17.3 ± 1.6	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; B,M

C₄H₁₁O₂⁺ + Methyl Alcohol = (C₄H₁₁O₂⁺ • )

By formula: C₄H₁₁O₂⁺ + CH₄O = (C₄H₁₁O₂⁺ • CH₄O)

Bond type: Hydrogen bonds between protonated and neutral organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	22.0	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	28.3	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M

(C₄H₁₁O₂⁺ • Methyl Alcohol ) + = (C₄H₁₁O₂⁺ • 2)

By formula: (C₄H₁₁O₂⁺ • CH₄O) + CH₄O = (C₄H₁₁O₂⁺ • 2CH₄O)

Bond type: Hydrogen bonds between protonated and neutral organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.4	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.6	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M

(C₄H₁₁O₂⁺ • 2 Methyl Alcohol ) + = (C₄H₁₁O₂⁺ • 3)

By formula: (C₄H₁₁O₂⁺ • 2CH₄O) + CH₄O = (C₄H₁₁O₂⁺ • 3CH₄O)

Bond type: Hydrogen bonds between protonated and neutral organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.6	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M

(C₄H₁₁O₂⁺ • 3 Methyl Alcohol ) + = (C₄H₁₁O₂⁺ • 4)

By formula: (C₄H₁₁O₂⁺ • 3CH₄O) + CH₄O = (C₄H₁₁O₂⁺ • 4CH₄O)

Bond type: Hydrogen bonds between protonated and neutral organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.2	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.3	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M

(C₄H₁₁O₂⁺ • 4 Methyl Alcohol ) + = (C₄H₁₁O₂⁺ • 5)

By formula: (C₄H₁₁O₂⁺ • 4CH₄O) + CH₄O = (C₄H₁₁O₂⁺ • 5CH₄O)

Bond type: Hydrogen bonds between protonated and neutral organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.2	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.2	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M

(C₄H₁₁O₂⁺ • 5 Methyl Alcohol ) + = (C₄H₁₁O₂⁺ • 6)

By formula: (C₄H₁₁O₂⁺ • 5CH₄O) + CH₄O = (C₄H₁₁O₂⁺ • 6CH₄O)

Bond type: Hydrogen bonds between protonated and neutral organics

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.9	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M

C₄H₁₅O₄^- + 4 Methyl Alcohol = C₅H₁₉O₅^-

By formula: C₄H₁₅O₄^- + 4CH₄O = C₅H₁₉O₅^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.4 ± 1.0	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	4.70 ± 0.50	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B

+ Methyl Alcohol = ( • )

By formula: C₅H₅^- + CH₄O = (C₅H₅^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.2 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.9 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B

C₅H₁₁O^- + Methyl Alcohol = (C₅H₁₁O^- • )

By formula: C₅H₁₁O^- + CH₄O = (C₅H₁₁O^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	25.7 ± 2.9	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	17.0 ± 2.0	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B

C₆F₄O₂^- + Methyl Alcohol = (C₆F₄O₂^- • )

By formula: C₆F₄O₂^- + CH₄O = (C₆F₄O₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	3.0 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.0	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄ClNO₂^- + Methyl Alcohol = (C₆H₄ClNO₂^- • )

By formula: C₆H₄ClNO₂^- + CH₄O = (C₆H₄ClNO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.4 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
5.4	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄ClNO₂^- + Methyl Alcohol = (C₆H₄ClNO₂^- • )

By formula: C₆H₄ClNO₂^- + CH₄O = (C₆H₄ClNO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.4 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
5.4	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄ClNO₂^- + Methyl Alcohol = (C₆H₄ClNO₂^- • )

By formula: C₆H₄ClNO₂^- + CH₄O = (C₆H₄ClNO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.6 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
5.6	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄FNO₂^- + Methyl Alcohol = (C₆H₄FNO₂^- • )

By formula: C₆H₄FNO₂^- + CH₄O = (C₆H₄FNO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.8 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
5.8	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄FNO₂^- + Methyl Alcohol = (C₆H₄FNO₂^- • )

By formula: C₆H₄FNO₂^- + CH₄O = (C₆H₄FNO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.0 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.0	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄FNO₂^- + Methyl Alcohol = (C₆H₄FNO₂^- • )

By formula: C₆H₄FNO₂^- + CH₄O = (C₆H₄FNO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.8 ± 2.0	kcal/mol	N/A	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.8	cal/mol*K	PHPMS	Chowdhury, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.6 ± 2.0	kcal/mol	TDAs	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₆H₄NO₃^- + Methyl Alcohol = (C₆H₄NO₃^- • )

By formula: C₆H₄NO₃^- + CH₄O = (C₆H₄NO₃^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.0 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₆H₄NO₃^- + Methyl Alcohol = (C₆H₄NO₃^- • )

By formula: C₆H₄NO₃^- + CH₄O = (C₆H₄NO₃^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.8 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₆H₄N₂O₄^- + Methyl Alcohol = (C₆H₄N₂O₄^- • )

By formula: C₆H₄N₂O₄^- + CH₄O = (C₆H₄N₂O₄^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	2.3 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
2.3	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄N₂O₄^- + Methyl Alcohol = (C₆H₄N₂O₄^- • )

By formula: C₆H₄N₂O₄^- + CH₄O = (C₆H₄N₂O₄^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	3.3 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.3	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄N₂O₄^- + Methyl Alcohol = (C₆H₄N₂O₄^- • )

By formula: C₆H₄N₂O₄^- + CH₄O = (C₆H₄N₂O₄^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	3.8 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.8	343.	PHPMS	Chowdhury, 1987	gas phase; M

+ Methyl Alcohol = ( • )

By formula: C₆H₄O₂^- + CH₄O = (C₆H₄O₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.5 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
5.5	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₅NO₂^- + Methyl Alcohol = (C₆H₅NO₂^- • )

By formula: C₆H₅NO₂^- + CH₄O = (C₆H₅NO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.10 ± 0.20	kcal/mol	TDAs	Sieck, 1985	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.1	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	7.30 ± 0.40	kcal/mol	TDAs	Sieck, 1985	gas phase; B
Δ_rG°	6.3 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.3	343.	PHPMS	Chowdhury, 1987	gas phase; M

+ Methyl Alcohol = ( • )

By formula: C₆H₅S^- + CH₄O = (C₆H₅S^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.4	kcal/mol	PHPMS	Sieck and Meot-ner, 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.0	cal/mol*K	PHPMS	Sieck and Meot-ner, 1989	gas phase; M

+ Methyl Alcohol = C₇H₉OS^-

By formula: C₆H₅S^- + CH₄O = C₇H₉OS^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.40 ± 0.10	kcal/mol	TDAs	Sieck and Meot-ner, 1989	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.50 ± 0.30	kcal/mol	TDAs	Sieck and Meot-ner, 1989	gas phase; B

C₆H₉^- + Methyl Alcohol = C₇H₁₃O^-

By formula: C₆H₉^- + CH₄O = C₇H₁₃O^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.8 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; Anchored to MeOH ΔGacid=375.2; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	11.50	kcal/mol	IMRE	Mustanir, Matsuoka, et al., 2006	gas phase; B
Δ_rG°	10.7 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; Anchored to MeOH ΔGacid=375.2; B

C₆H₁₁S₂^- + Methyl Alcohol = (C₆H₁₁S₂^- • )

By formula: C₆H₁₁S₂^- + CH₄O = (C₆H₁₁S₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.9 ± 2.5	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13.2 ± 1.6	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B

+ Methyl Alcohol = ( • )

By formula: C₇F₁₄^- + CH₄O = (C₇F₁₄^- • CH₄O)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.4	308.	PHPMS	Knighton, Zook, et al., 1990	gas phase; M

C₇H₄F₃NO₂^- + Methyl Alcohol = (C₇H₄F₃NO₂^- • )

By formula: C₇H₄F₃NO₂^- + CH₄O = (C₇H₄F₃NO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.6 ± 2.0	kcal/mol	N/A	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	4.9 ± 1.6	kcal/mol	TDAs	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₇H₄N₂O₂^- + Methyl Alcohol = (C₇H₄N₂O₂^- • )

By formula: C₇H₄N₂O₂^- + CH₄O = (C₇H₄N₂O₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	4.7 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.7	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₄N₂O₂^- + Methyl Alcohol = (C₇H₄N₂O₂^- • )

By formula: C₇H₄N₂O₂^- + CH₄O = (C₇H₄N₂O₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	4.5 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.5	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₄N₂O₂^- + Methyl Alcohol = (C₇H₄N₂O₂^- • )

By formula: C₇H₄N₂O₂^- + CH₄O = (C₇H₄N₂O₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.9 ± 2.0	kcal/mol	N/A	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	28.6	cal/mol*K	PHPMS	Chowdhury, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	4.1 ± 2.0	kcal/mol	TDAs	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₇H₇NO₂^- + Methyl Alcohol = (C₇H₇NO₂^- • )

By formula: C₇H₇NO₂^- + CH₄O = (C₇H₇NO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.3 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.3	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₇NO₂^- + Methyl Alcohol = (C₇H₇NO₂^- • )

By formula: C₇H₇NO₂^- + CH₄O = (C₇H₇NO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.5 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.5	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₇NO₂^- + Methyl Alcohol = (C₇H₇NO₂^- • )

By formula: C₇H₇NO₂^- + CH₄O = (C₇H₇NO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.4 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₇H₇NO₃^- + Methyl Alcohol = (C₇H₇NO₃^- • )

By formula: C₇H₇NO₃^- + CH₄O = (C₇H₇NO₃^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.1 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.1	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₇NO₃^- + Methyl Alcohol = (C₇H₇NO₃^- • )

By formula: C₇H₇NO₃^- + CH₄O = (C₇H₇NO₃^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.3 ± 2.0	kcal/mol	N/A	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.4	cal/mol*K	PHPMS	Chowdhury, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.3 ± 2.0	kcal/mol	TDAs	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₈H₅^- + Methyl Alcohol = (C₈H₅^- • )

By formula: C₈H₅^- + CH₄O = (C₈H₅^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.5 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; B
Δ_rH°	21.4 ± 2.9	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.3	cal/mol*K	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	11.0 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; B
Δ_rG°	12.7 ± 2.0	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M

C₈H₉NO₂^- + Methyl Alcohol = (C₈H₉NO₂^- • )

By formula: C₈H₉NO₂^- + CH₄O = (C₈H₉NO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.3 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.3	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₈H₁₇O₄⁺ + Methyl Alcohol = (C₈H₁₇O₄⁺ • )

By formula: C₈H₁₇O₄⁺ + CH₄O = (C₈H₁₇O₄⁺ • CH₄O)

Bond type: Hydrogen bonds with polydentate bonding in positive ions

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	19.5	kcal/mol	PHPMS	Sharma and Kebarle, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	34.0	cal/mol*K	PHPMS	Sharma and Kebarle, 1984	gas phase; M

C₉H₇^- + Methyl Alcohol = C₁₀H₁₁O^-

By formula: C₉H₇^- + CH₄O = C₁₀H₁₁O^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.6 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; Anchored to MeOH ΔGacid=375.2; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	10.20	kcal/mol	IMRE	Mustanir, Matsuoka, et al., 2006	gas phase; B
Δ_rG°	11.1 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; Anchored to MeOH ΔGacid=375.2; B

C₁₀H₄Cl₂O₂^- + Methyl Alcohol = (C₁₀H₄Cl₂O₂^- • )

By formula: C₁₀H₄Cl₂O₂^- + CH₄O = (C₁₀H₄Cl₂O₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	<1.5 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
1.5	343.	PHPMS	Chowdhury, 1987	gas phase; DG<; M

+ Methyl Alcohol = ( • )

By formula: C₁₀H₆O₂^- + CH₄O = (C₁₀H₆O₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	4.6 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.6	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₁₀H₂₁O₅⁺ + Methyl Alcohol = (C₁₀H₂₁O₅⁺ • )

By formula: C₁₀H₂₁O₅⁺ + CH₄O = (C₁₀H₂₁O₅⁺ • CH₄O)

Bond type: Hydrogen bonds with polydentate bonding in positive ions

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.0	kcal/mol	PHPMS	Sharma and Kebarle, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	28.0	cal/mol*K	PHPMS	Sharma and Kebarle, 1984	gas phase; M

C₁₂H₂₅O₆⁺ + Methyl Alcohol = (C₁₂H₂₅O₆⁺ • )

By formula: C₁₂H₂₅O₆⁺ + CH₄O = (C₁₂H₂₅O₆⁺ • CH₄O)

Bond type: Hydrogen bonds with polydentate bonding in positive ions

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.0	kcal/mol	PHPMS	Sharma and Kebarle, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.5	cal/mol*K	PHPMS	Sharma and Kebarle, 1984	gas phase; M

+ Methyl Alcohol = ( • )

By formula: Cl^- + CH₄O = (Cl^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17. ± 3.	kcal/mol	AVG	N/A	Average of 8 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.6	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M
Δ_rS°	24.1	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Δ_rS°	22.0	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
Δ_rS°	22.9	cal/mol*K	N/A	Larson and McMahon, 1984	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Δ_rS°	14.8	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	10.1 ± 0.8	kcal/mol	AVG	N/A	Average of 10 values; Individual data points

( • Methyl Alcohol ) + = ( • 2)

By formula: (Cl^- • CH₄O) + CH₄O = (Cl^- • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.10 ± 0.40	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	13.70 ± 0.20	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B,M
Δ_rH°	14.1 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Δ_rH°	13.00 ± 0.70	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.2	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Δ_rS°	22.0	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M
Δ_rS°	19.4	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	7.30	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	7.10	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
Δ_rG°	6.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
Δ_rG°	7.20 ± 0.40	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( • 2 Methyl Alcohol ) + = ( • 3)

By formula: (Cl^- • 2CH₄O) + CH₄O = (Cl^- • 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.50 ± 0.20	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	10.80 ± 0.30	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B,M
Δ_rH°	11.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Δ_rH°	12.30 ± 0.60	kcal/mol	N/A	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.9	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Δ_rS°	22.7	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M
Δ_rS°	23.6	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.06	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	4.00	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
Δ_rG°	4.9 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
Δ_rG°	5.20 ± 0.30	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( • 3 Methyl Alcohol ) + = ( • 4)

By formula: (Cl^- • 3CH₄O) + CH₄O = (Cl^- • 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Δ_rH°	10.50	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
Δ_rH°	11.20 ± 0.60	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.9	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Δ_rS°	26.4	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	3.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
Δ_rG°	3.70	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
Δ_rG°	3.30 ± 0.20	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( • 4 Methyl Alcohol ) + = ( • 5)

By formula: (Cl^- • 4CH₄O) + CH₄O = (Cl^- • 5CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.2 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Δ_rH°	10.50 ± 0.50	kcal/mol	N/A	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.7	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Δ_rS°	25.5	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	2.7 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
Δ_rG°	2.90 ± 0.10	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( • 5 Methyl Alcohol ) + = ( • 6)

By formula: (Cl^- • 5CH₄O) + CH₄O = (Cl^- • 6CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.9 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.2	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	2.2 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B

( • 6 Methyl Alcohol ) + = ( • 7)

By formula: (Cl^- • 6CH₄O) + CH₄O = (Cl^- • 7CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.0 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.1	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	2.0 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B

( • 7 Methyl Alcohol ) + = ( • 8)

By formula: (Cl^- • 7CH₄O) + CH₄O = (Cl^- • 8CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	7.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	19.7	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.7 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B

( • 8 Methyl Alcohol ) + = ( • 9)

By formula: (Cl^- • 8CH₄O) + CH₄O = (Cl^- • 9CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	7.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.6	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.4 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B

( • 9 Methyl Alcohol ) + = ( • 10)

By formula: (Cl^- • 9CH₄O) + CH₄O = (Cl^- • 10CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	7.4 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.1	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.4 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B

( • 10 Methyl Alcohol ) + = ( • 11)

By formula: (Cl^- • 10CH₄O) + CH₄O = (Cl^- • 11CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	7.3 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; Estimated entropy; single temperature measurement; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.	cal/mol*K	N/A	Hiraoka and Mizuse, 1987	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.3 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; Estimated entropy; single temperature measurement; B

( • Methyl Alcohol • ) + = ( • 2 • )

By formula: (Cl^- • CH₄O • H₂O) + CH₄O = (Cl^- • 2CH₄O • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.8	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	19.	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( • ) + Methyl Alcohol = ( • • )

By formula: (Cl^- • H₂O) + CH₄O = (Cl^- • CH₄O • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.2	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.9	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( • 2) + Methyl Alcohol = ( • • 2)

By formula: (Cl^- • 2H₂O) + CH₄O = (Cl^- • CH₄O • 2H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.4	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	18.1	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

+ Methyl Alcohol = ( • )

By formula: Co⁺ + CH₄O = (Co⁺ • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	35.4 ± 1.9	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD

+ Methyl Alcohol = ( • )

By formula: Cu⁺ + CH₄O = (Cu⁺ • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.4	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.	cal/mol*K	N/A	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.9	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M

( • Methyl Alcohol ) + = ( • 2)

By formula: (Cu⁺ • CH₄O) + CH₄O = (Cu⁺ • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.8	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.	cal/mol*K	N/A	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.3	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M

+ Methyl Alcohol = CH₃D₄FO^-

By formula: F^- + CH₄O = CH₃D₄FO^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	29.8 ± 2.0	kcal/mol	TDEq	Wilkinson, Szulejko, et al., 1992	gas phase; Reported relative to ROH..F-, 0.5 kcal/mol weaker.; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	22.4 ± 2.0	kcal/mol	TDEq	Wilkinson, Szulejko, et al., 1992	gas phase; Reported relative to ROH..F-, 0.5 kcal/mol weaker.; B

+ Methyl Alcohol = ( • )

By formula: F^- + CH₄O = (F^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	29.6 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1983	gas phase; B,M
Δ_rH°	29.4 ± 2.2	kcal/mol	CIDT	DeTuri and Ervin, 1999	gas phase; B
Δ_rH°	23.3 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.0	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Δ_rS°	22.6	cal/mol*K	N/A	Larson and McMahon, 1983	gas phase; switching reaction(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	22.8 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1983	gas phase; B,M
Δ_rG°	15.8 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • Methyl Alcohol ) + = ( • 2)

By formula: (F^- • CH₄O) + CH₄O = (F^- • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.30 ± 0.30	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	19.3 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.2	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	12.97	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	12.4 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 2 Methyl Alcohol ) + = ( • 3)

By formula: (F^- • 2CH₄O) + CH₄O = (F^- • 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.10 ± 0.60	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	14.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.2	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.06	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	8.2 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 3 Methyl Alcohol ) + = ( • 4)

By formula: (F^- • 3CH₄O) + CH₄O = (F^- • 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.5	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.5 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 4 Methyl Alcohol ) + = ( • 5)

By formula: (F^- • 4CH₄O) + CH₄O = (F^- • 5CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.9 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.3	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	3.8 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 5 Methyl Alcohol ) + = ( • 6)

By formula: (F^- • 5CH₄O) + CH₄O = (F^- • 6CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.8	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	2.6 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 6 Methyl Alcohol ) + = ( • 7)

By formula: (F^- • 6CH₄O) + CH₄O = (F^- • 7CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.5	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	2.2 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 7 Methyl Alcohol ) + = ( • 8)

By formula: (F^- • 7CH₄O) + CH₄O = (F^- • 8CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.7 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.8	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.7 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 8 Methyl Alcohol ) + = ( • 9)

By formula: (F^- • 8CH₄O) + CH₄O = (F^- • 9CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.2 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.7	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.5 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 9 Methyl Alcohol ) + = ( • 10)

By formula: (F^- • 9CH₄O) + CH₄O = (F^- • 10CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.1	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.3 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 10 Methyl Alcohol ) + = ( • 11)

By formula: (F^- • 10CH₄O) + CH₄O = (F^- • 11CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.5	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.0 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 11 Methyl Alcohol ) + = ( • 12)

By formula: (F^- • 11CH₄O) + CH₄O = (F^- • 12CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.	cal/mol*K	N/A	Hiraoka and Yamabe, 1991	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.1 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B

F₆S^- + Methyl Alcohol = (F₆S^- • )

By formula: F₆S^- + CH₄O = (F₆S^- • CH₄O)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.5	308.	PHPMS	Knighton, Zook, et al., 1990	gas phase; M

HS^- + Methyl Alcohol = (HS^- • )

By formula: HS^- + CH₄O = (HS^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17.0 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	11.0 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

H₄ClO₂^- + Methyl Alcohol + 2 = CH₈ClO₃^-

By formula: H₄ClO₂^- + CH₄O + 2H₂O = CH₈ClO₃^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.40 ± 0.20	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
Δ_rH°	11.40 ± 0.30	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; For solvation by MeOH of core ion; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.80	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
Δ_rG°	6.00	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; For solvation by MeOH of core ion; B

+ Methyl Alcohol = ( • )

By formula: I^- + CH₄O = (I^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.90 ± 0.20	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	11.3 ± 1.0	kcal/mol	TDAs	Caldwell and Kebarle, 1984	gas phase; B,M
Δ_rH°	11.2	kcal/mol	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Δ_rH°	11.	kcal/mol	PHPMS	Caldwell, Masucci, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	17.1	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Δ_rS°	17.8	cal/mol*K	PHPMS	Caldwell and Kebarle, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.76	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	6.0 ± 1.0	kcal/mol	TDAs	Caldwell and Kebarle, 1984	gas phase; B
Δ_rG°	5.7 ± 2.0	kcal/mol	IMRE	Tanabe, Morgon, et al., 1996	gas phase; Anchored to H2O..I- of Caldwell and Kebarle, 1984; B

( • Methyl Alcohol ) + = ( • 2)

By formula: (I^- • CH₄O) + CH₄O = (I^- • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.50 ± 0.20	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	11.1 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.6	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	4.25	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	4.4 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 2 Methyl Alcohol ) + = ( • 3)

By formula: (I^- • 2CH₄O) + CH₄O = (I^- • 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	7.70 ± 0.60	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rH°	9.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.4	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	3.41	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
Δ_rG°	3.1 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 3 Methyl Alcohol ) + = ( • 4)

By formula: (I^- • 3CH₄O) + CH₄O = (I^- • 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.7 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.8	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	2.3 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 4 Methyl Alcohol ) + = ( • 5)

By formula: (I^- • 4CH₄O) + CH₄O = (I^- • 5CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.1	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.5 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 5 Methyl Alcohol ) + = ( • 6)

By formula: (I^- • 5CH₄O) + CH₄O = (I^- • 6CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.4	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.4 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 6 Methyl Alcohol ) + = ( • 7)

By formula: (I^- • 6CH₄O) + CH₄O = (I^- • 7CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.4 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	28.0	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1.1 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( • 7 Methyl Alcohol ) + = ( • 8)

By formula: (I^- • 7CH₄O) + CH₄O = (I^- • 8CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.1 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	28.	cal/mol*K	N/A	Hiraoka and Yamabe, 1991	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	0.8 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B

+ Methyl Alcohol = ( • )

By formula: K⁺ + CH₄O = (K⁺ • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.9	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; switching reaction,n(K+)H2O; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	31.6	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; switching reaction,n(K+)H2O; M

( • Methyl Alcohol ) + = ( • 2)

By formula: (K⁺ • CH₄O) + CH₄O = (K⁺ • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	18.0	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	35.	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( • 2 Methyl Alcohol ) + = ( • 3)

By formula: (K⁺ • 2CH₄O) + CH₄O = (K⁺ • 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.5	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	28.	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( • 3 Methyl Alcohol ) + = ( • 4)

By formula: (K⁺ • 3CH₄O) + CH₄O = (K⁺ • 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.5	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( • Methyl Alcohol • ) + = ( • 2 • )

By formula: (K⁺ • CH₄O • H₂O) + CH₄O = (K⁺ • 2CH₄O • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.5	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.3	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( • 2 Methyl Alcohol • ) + = ( • 3 • )

By formula: (K⁺ • 2CH₄O • H₂O) + CH₄O = (K⁺ • 3CH₄O • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.5	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.6	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( • ) + Methyl Alcohol = ( • • )

By formula: (K⁺ • H₂O) + CH₄O = (K⁺ • CH₄O • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	19.6	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	32.5	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( • 2) + Methyl Alcohol = ( • • 2)

By formula: (K⁺ • 2H₂O) + CH₄O = (K⁺ • CH₄O • 2H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	16.6	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; switching reaction,n(K+)3H2O; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.9	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; switching reaction,n(K+)3H2O; M

+ Methyl Alcohol = ( • )

By formula: Li⁺ + CH₄O = (Li⁺ • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	36.8 ± 1.9	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	38.1	kcal/mol	ICR	Woodin and Beauchamp, 1978	gas phase; switching reaction(Li+)H20, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
Δ_rH°	38.	kcal/mol	ICR	Staley and Beauchamp, 1975	gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 extrapolated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.	cal/mol*K	N/A	Woodin and Beauchamp, 1978	gas phase; switching reaction(Li+)H20, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	30.3	kcal/mol	ICR	Woodin and Beauchamp, 1978	gas phase; switching reaction(Li+)H20, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M

+ Methyl Alcohol = ( • )

By formula: Mg⁺ + CH₄O = (Mg⁺ • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	34.7 ± 1.6	kcal/mol	CIDT	Andersen, Muntean, et al., 2000	RCD
Δ_rH°	61. ± 5.	kcal/mol	PDiss	Operti, Tews, et al., 1988	gas phase; M

( • Methyl Alcohol ) + = ( • 2)

By formula: (Mg⁺ • CH₄O) + CH₄O = (Mg⁺ • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	28.8 ± 1.6	kcal/mol	CIDT	Andersen, Muntean, et al., 2000	RCD

( • 2 Methyl Alcohol ) + = ( • 3)

By formula: (Mg⁺ • 2CH₄O) + CH₄O = (Mg⁺ • 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.9 ± 2.1	kcal/mol	CIDT	Andersen, Muntean, et al., 2000	RCD

+ Methyl Alcohol = ( • )

By formula: NO₂^- + CH₄O = (NO₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17.40 ± 0.20	kcal/mol	TDAs	Sieck, 1985	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.8	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	9.70 ± 0.40	kcal/mol	TDAs	Sieck, 1985	gas phase; B

+ Methyl Alcohol = ( • )

By formula: Na⁺ + CH₄O = (Na⁺ • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	23.2 ± 1.3	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	21.9 ± 1.4	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD
Δ_rH°	24.0 ± 0.2	kcal/mol	HPMS	Hoyau, Norrman, et al., 1999	RCD
Δ_rH°	26.6 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20500.	cal/mol*K	HPMS	Hoyau, Norrman, et al., 1999	RCD
Δ_rS°	24.3	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
17.3	298.	IMRE	McMahon and Ohanessian, 2000	Anchor alanine=39.89; RCD

( • Methyl Alcohol ) + = ( • 2)

By formula: (Na⁺ • CH₄O) + CH₄O = (Na⁺ • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.5 ± 1.4	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	21.4 ± 1.6	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	20.5 ± 1.6	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	20.2 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.7	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

( • 2 Methyl Alcohol ) + = ( • 3)

By formula: (Na⁺ • 2CH₄O) + CH₄O = (Na⁺ • 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17.4 ± 0.4	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.1	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

( • 3 Methyl Alcohol ) + = ( • 4)

By formula: (Na⁺ • 3CH₄O) + CH₄O = (Na⁺ • 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.7 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.0	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

+ Methyl Alcohol = ( • )

By formula: O₂^- + CH₄O = (O₂^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	19.10	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.9	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	12.50	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( • Methyl Alcohol ) + = ( • 2)

By formula: (O₂^- • CH₄O) + CH₄O = (O₂^- • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.50 ± 0.80	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.8	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.10 ± 0.40	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( • 2 Methyl Alcohol ) + = ( • 3)

By formula: (O₂^- • 2CH₄O) + CH₄O = (O₂^- • 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.50 ± 0.70	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.9	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.20 ± 0.30	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

+ Methyl Alcohol = ( • )

By formula: Pb⁺ + CH₄O = (Pb⁺ • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	23.3 ± 0.2	kcal/mol	HPMS	Guo and Castleman, 1990	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.3	cal/mol*K	HPMS	Guo and Castleman, 1990	gas phase; M

( • Methyl Alcohol ) + = ( • 2)

By formula: (Pb⁺ • CH₄O) + CH₄O = (Pb⁺ • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17.2 ± 0.3	kcal/mol	HPMS	Guo and Castleman, 1990	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.6	cal/mol*K	HPMS	Guo and Castleman, 1990	gas phase; M

Gas Chromatography

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

View large format table.

Column type	Active phase	Temperature (C)	I	Reference	Comment
Capillary	SE-30	140.	340.	Haken and Korhonen, 1985	Column length: 25. m; Column diameter: 0.33 mm
Packed	SE-30	100.	384.	Winskowski, 1983	Gaschrom Q; Column length: 2. m
Packed	SE-30	150.	356.	Haken, Nguyen, et al., 1979	Celatom AW silanized; Column length: 3.7 m
Packed	Apiezon L	120.	336.	Bogoslovsky, Anvaer, et al., 1978	Celite 545
Packed	SE-30	100.	373.	Pías and Gascó, 1975	Ar, Chromosorb W AW DMCS HP (80-100 mesh); Column length: 1. m
Packed	Apiezon L	100.	355.	Brown, Chapman, et al., 1968	N2, DCMS-treated Chromosorb W; Column length: 2.3 m
Packed	SE-30	80.	330.	Viani, Müggler-Chavan, et al., 1965	He, Chromosorb P; Column length: 6. m

Kovats' RI, non-polar column, custom temperature program

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	Petrocol DH-100	380.	Haagen-Smit Laboratory, 1997	He; Column length: 100. m; Column diameter: 0.2 mm; Program: 5C(10min) => 5C/min => 50C(48min) => 1.5C/min => 195C(91min)

Kovats' RI, polar column, isothermal

View large format table.

Column type	Active phase	Temperature (C)	I	Reference	Comment
Capillary	OV-351	100.	917.	Haken and Korhonen, 1985	N2; Column length: 25. m; Column diameter: 0.32 mm
Capillary	OV-351	80.	891.	Haken and Korhonen, 1985	N2; Column length: 25. m; Column diameter: 0.32 mm
Packed	PEG-2000	152.	860.	Anderson, Jurel, et al., 1973	He, Celite 545 (44-60 mesh); Column length: 3. m
Packed	PEG-2000	179.	881.	Anderson, Jurel, et al., 1973	He, Celite 545 (44-60 mesh); Column length: 3. m
Packed	Carbowax 20M	100.	892.	Zarazir, Chovin, et al., 1970	Chromosorb W; Column length: 2. m
Packed	Polyethylene Glycol 4000	100.	904.	Bonastre and Grenier, 1968	Chromosorb P; Column length: 6. m
Packed	Polyethylene Glycol 4000	120.	897.	Bonastre and Grenier, 1968	Chromosorb P; Column length: 6. m
Packed	Polyethylene Glycol 4000	140.	886.	Bonastre and Grenier, 1968	Chromosorb P; Column length: 6. m
Packed	Polyethylene Glycol 4000	80.	914.	Bonastre and Grenier, 1968	Chromosorb P; Column length: 6. m

Kovats' RI, polar column, temperature ramp

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	CBP-20	899.	Shimadzu, 2003	25. m/0.2 mm/0.25 μm, He, 50. C @ 5. min, 4. K/min; T_end: 200. C
Capillary	DB-Wax	888.	Shimoda and Shibamoto, 1990	He, 40. C @ 6. min, 3. K/min; Column length: 60. m; Column diameter: 0.25 mm; T_end: 190. C

Kovats' RI, polar column, custom temperature program

View large format table.

Column type	Active phase	I	Reference	Comment
Packed	Carbowax 20M	869.	Kevei and Kozma, 1976	Chromosorb; Program: not specified

Van Den Dool and Kratz RI, non-polar column, temperature ramp

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	Petrocol DH	372.7	Censullo, Jones, et al., 2003	50. m/0.25 mm/0.5 μm, He, 35. C @ 10. min, 3. K/min, 200. C @ 10. min
Capillary	Petrocol DH	378.2	Censullo, Jones, et al., 2003	50. m/0.25 mm/0.5 μm, He, 35. C @ 10. min, 3. K/min, 200. C @ 10. min
Capillary	SE-30	400.0	Golovnya, Kuz'menko, et al., 2000	25. m/0.32 mm/1. μm, He, 4. K/min; T_start: 60. C
Capillary	SE-30	400.0	Golovnya, Kuz'menko, et al., 2000, 2	25. m/0.32 mm/1. μm, He, 4. K/min; T_start: 60. C
Capillary	DB-1	361.	Bartelt, 1997	30. m/0.32 mm/5. μm, He, 35. C @ 1. min, 10. K/min; T_end: 270. C

Van Den Dool and Kratz RI, non-polar column, custom temperature program

View large format table.

Column type	Active phase	I	Reference	Comment
Packed	SE-30	368.	Peng, Ding, et al., 1988	Supelcoport; Chromosorb; Column length: 3.05 m; Program: 40C(5min) => 10C/min => 200C or 250C (60min)

Van Den Dool and Kratz RI, polar column, temperature ramp

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	Carbowax	910.4	Censullo, Jones, et al., 2003	60. m/0.25 mm/0.5 μm, He, 50. C @ 10. min, 5. K/min, 250. C @ 10. min
Capillary	FFAP	916.	Ott, Fay, et al., 1997	30. m/0.25 mm/0.25 μm, He, 20. C @ 1. min, 4. K/min, 200. C @ 1. min
Packed	Carbowax 20M	866.	van den Dool and Kratz, 1963	Celite 545, 4.6 K/min; T_start: 75. C; T_end: 228. C

Normal alkane RI, non-polar column, isothermal

View large format table.

Column type	Active phase	Temperature (C)	I	Reference	Comment
Capillary	DB-1	60.	382.	Shimadzu, 2003, 2	60. m/0.32 mm/1. μm, He
Packed	Squalane	100.	338.	Vernon, 1971	N2
Packed	DC-400	150.	370.	Anderson, 1968	Helium, Gas-Pak (60-80 mesh); Column length: 3.0 m
Packed	Squalane	125.	348.	Cremer and Nonn, 1964	H2, Chromosorb W (80-100 mesh); Column length: 3. m

Normal alkane RI, non-polar column, temperature ramp

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	Polydimethyl siloxane: CP-Sil 5 CB	395.	Bramston-Cook, 2013	60. m/0.25 mm/1.0 μm, Helium, 45. C @ 1.45 min, 3.6 K/min, 210. C @ 2.72 min
Capillary	Petrocol DH	379.	Supelco, 2012	100. m/0.25 mm/0.50 μm, Helium, 20. C @ 15. min, 15. K/min, 220. C @ 30. min
Capillary	HP-5	367.5	Leffingwell and Alford, 2005	60. m/0.32 mm/0.25 μm, He, 30. C @ 2. min, 2. K/min, 260. C @ 28. min
Capillary	OV-101	381.	Zenkevich, 2005	25. m/0.20 mm/0.10 μm, N2/He, 6. K/min; T_start: 50. C; T_end: 250. C
Capillary	BP-1	370.	Health Safety Executive, 2000	50. m/0.22 mm/0.75 μm, He, 5. K/min; T_start: 50. C; T_end: 200. C
Capillary	DB-5MS	353.5	Shoenmakers, Oomen, et al., 2000	30. m/0.25 mm/0.25 μm, He, 40. C @ 1. min, 3. K/min; T_end: 250. C

Normal alkane RI, non-polar column, custom temperature program

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	HP-5 MS	381.	Kotowska, Zalikowski, et al., 2012	30. m/0.25 mm/0.25 μm, Helium; Program: not specified
Capillary	Methyl Silicone	373.	Chen and Feng, 2007	Program: not specified
Capillary	Methyl Silicone	373.	Kou, Zhang, et al., 2006	Program: not specified
Capillary	Methyl Silicone	408.	Blunden, Aneja, et al., 2005	60. m/0.32 mm/1.0 μm, Helium; Program: -50 0C (2 min) 8 0C/min -> 200 0C (7.75 min) 25 0C -> 225 0C (8 min)
Capillary	Methyl Silicone	373.	Fu and Wang, 2004	Program: not specified
Capillary	Methyl Silicone	362.	N/A	Program: not specified
Capillary	Polydimethyl siloxanes	381.	Zenkevich, 2001	Program: not specified
Capillary	Polydimethyl siloxanes	381.	Zenkevich, 2001, 2	Program: not specified
Capillary	Methyl Silicone	381.	Zenkevich, 1999	Program: not specified
Capillary	SPB-1	353.	Flanagan, Streete, et al., 1997	60. m/0.53 mm/5. μm, He; Program: 40C(6min) => 5C/min => 80C => 10C/min => 200C
Capillary	Polydimethyl siloxanes	381.	Zenkevich and Chupalov, 1996	Program: not specified
Capillary	Methyl Silicone	381.	Zenkevich, Korolenko, et al., 1995	Program: not specified
Capillary	DB-1	348.	Schuberth, 1994	30. m/0.25 mm/1. μm, He; Program: 40C (4min) => 10C/min => 200C => 50C/min => 250C
Capillary	SPB-1	353.	Strete, Ruprah, et al., 1992	60. m/0.53 mm/5.0 μm, Helium; Program: 40 0C (6 min) 5 0C/min -> 80 0C 10 0C/min -> 200 0C
Capillary	SPB-1	391.	Strete, Ruprah, et al., 1992	60. m/0.53 mm/5.0 μm, Helium; Program: not specified
Capillary	CP Sil 8 CB	404.	Weller and Wolf, 1989	40. m/0.25 mm/0.25 μm, He; Program: 30 0C (1 min) 15 0C/min -> 45 0C 3 0C/min -> 120 0C
Capillary	OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc.	384.	Waggott and Davies, 1984	Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified

Normal alkane RI, polar column, isothermal

View large format table.

Column type	Active phase	Temperature (C)	I	Reference	Comment
Capillary	Carbowax 20M	100.	892.	Sun, Siepmann, et al., 2006	30. m/0.25 mm/0.25 μm, Helium
Capillary	Carbowax 20M	60.	899.	Sun, Siepmann, et al., 2006	30. m/0.25 mm/0.25 μm, Helium
Capillary	Carbowax 20M	80.	895.	Sun, Siepmann, et al., 2006	30. m/0.25 mm/0.25 μm, Helium
Capillary	DB-Wax	60.	921.	Shimadzu, 2003, 2	50. m/0.32 mm/1. μm, He

Normal alkane RI, polar column, temperature ramp

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	DB-Wax	911.	Shimadzu, 2012	30. m/0.32 mm/0.50 μm, Helium, 4. K/min; T_start: 40. C; T_end: 260. C
Capillary	DB-Wax	907.	Chida, Sone, et al., 2004	60. m/0.25 mm/0.5 μm, 35. C @ 5. min, 4. K/min, 240. C @ 10. min
Capillary	DB-Wax	911.	Shimadzu Corporation, 2003	30. m/0.32 mm/0.5 μm, He, 4. K/min; T_start: 40. C; T_end: 260. C
Capillary	DB-Wax	903.	Tanaka, Yamauchi, et al., 2003	30. m/0.25 mm/0.25 μm, 30. C @ 1. min, 4. K/min; T_end: 250. C
Capillary	DB-Wax	905.	Tanaka, Yamauchi, et al., 2003	30. m/0.25 mm/0.25 μm, 30. C @ 1. min, 4. K/min; T_end: 250. C
Capillary	TC-Wax	898.	Suhardi, Suzuki, et al., 2002	60. m/0.25 mm/0.25 μm, He, 40. C @ 10. min, 3. K/min, 230. C @ 10. min
Capillary	DB-Wax	905.	Duque, Bonilla, et al., 2001	30. m/0.25 mm/0.25 μm, Helium, 4. K/min, 220. C @ 30. min; T_start: 25. C

Normal alkane RI, polar column, custom temperature program

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	Carbowax 20M	920.	Vinogradov, 2004	Program: not specified
Capillary	Polyethylene Glycol	897.	Zenkevich, Korolenko, et al., 1995	Program: not specified
Capillary	DB-Wax	909.	Peng, Yang, et al., 1991	Program: not specified
Capillary	Carbowax 400, Carbowax 20M, Carbowax 1540, Carbowax 4000, Superox 06, PEG 20M, etc.	907.	Waggott and Davies, 1984	Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified
Capillary	Carbowax 400, Carbowax 20M, Carbowax 1540, Carbowax 4000, Superox 06, PEG 20M, etc.	920.	Waggott and Davies, 1984	Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified
Capillary	Carbowax 20M	883.	Ramsey and Flanagan, 1982	Program: not specified

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Gibbard, H. Frank; Creek, Jefferson L., Vapor pressure of methanol from 288.15 to 337.65.deg.K, J. Chem. Eng. Data, 1974, 19, 4, 308-310, https://doi.org/10.1021/je60063a013 . [all data]

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Notes

Symbols used in this document:

AE	Appearance energy
C_p,gas	Constant pressure heat capacity of gas
C_p,liquid	Constant pressure heat capacity of liquid
C_p,solid	Constant pressure heat capacity of solid
IE (evaluated)	Recommended ionization energy
P_c	Critical pressure
S°_liquid	Entropy of liquid at standard conditions
S°_{solid,1 bar}	Entropy of solid at standard conditions (1 bar)
T	Temperature
T_boil	Boiling point
T_c	Critical temperature
T_fus	Fusion (melting) point
T_triple	Triple point temperature
V_c	Critical volume
ΔH_trs	Enthalpy of phase transition
ΔS_trs	Entropy of phase transition
Δ_cH°_gas	Enthalpy of combustion of gas at standard conditions
Δ_cH°_liquid	Enthalpy of combustion of liquid at standard conditions
Δ_fH°_gas	Enthalpy of formation of gas at standard conditions
Δ_fH°_liquid	Enthalpy of formation of liquid at standard conditions
Δ_fusH	Enthalpy of fusion
Δ_fusS	Entropy of fusion
Δ_rG°	Free energy of reaction at standard conditions
Δ_rH°	Enthalpy of reaction at standard conditions
Δ_rS°	Entropy of reaction at standard conditions
Δ_vapH	Enthalpy of vaporization
Δ_vapH°	Enthalpy of vaporization at standard conditions
ρ_c	Critical density

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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