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
Permanent link for this species. Use this link for bookmarking this species for future reference.
Information on this page:
Other data available:
- Gas phase thermochemistry data
- Condensed phase thermochemistry data
- Phase change data
- 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
- Gas phase ion energetics data
- Ion clustering data
- IR Spectrum
- Vibrational and/or electronic energy levels
- Gas Chromatography
- Fluid Properties
Data at other public NIST sites:
- Gas Phase Kinetics Database
Options:
- Switch to SI units

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Reaction thermochemistry data

Go To: Top, Mass spectrum (electron ionization), 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

Mass spectrum (electron ionization)

Go To: Top, Reaction thermochemistry data, References, Notes

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

Spectrum

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

Additional Data

View image of digitized spectrum (can be printed in landscape orientation).

Due to licensing restrictions, this spectrum cannot be downloaded.

Owner	NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved.
Origin	Japan AIST/NIMC Database- Spectrum MS-NW- 72
NIST MS number	229809

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.

References

Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), Notes

Evans and Keesee, 1991
Evans, D.H.; Keesee, R.G., Thermodynamics of Gas-Phase Mixed-Solvent Cluster Ions - Water and Methanol on K+ and Cl- and Comparison to Liquid Solutions, J. Phys. Chem., 1991, 95, 9, 3558, https://doi.org/10.1021/j100162a024 . [all data]

Hiraoka and Mizuse, 1987
Hiraoka, K.; Mizuse, S., Gas-Phase Solvation of Cl- with H2O, CH3OH, C2H4OH, i-C3H7OH, n-C3H7OH, and t-C4H9OH, Chem. Phys., 1987, 118, 3, 457, https://doi.org/10.1016/0301-0104(87)85078-4 . [all data]

Sieck, 1985
Sieck, L.W., Thermochemistry of Solvation of NO₂^- and C₆H₅NO₂^- by Polar Molecules in the Vapor Phase. Comparison with Cl^- and Variation with Ligand Structure., J. Phys. Chem., 1985, 89, 25, 5552, https://doi.org/10.1021/j100271a049 . [all data]

Larson and McMahon, 1984
Larson, J.W.; McMahon, T.B., Gas phase negative ion chemistry of alkylchloroformates, Can. J. Chem., 1984, 62, 675. [all data]

French, Ikuta, et al., 1982
French, M.A.; Ikuta, S.; Kebarle, P., Hydrogen bonding of O-H and C-H hydrogen donors to Cl^-. Results from mass spectrometric measurement of the ion-molecule equilibria RH + Cl^- = RHCl^-, Can. J. Chem., 1982, 60, 1907. [all data]

Yamdagni, Payzant, et al., 1973
Yamdagni, R.; Payzant, J.D.; Kebarle, P., Solvation of Cl- and O₂- with H₂O, CH₃OH, and CH₃CN in the gas phase, Can. J. Chem., 1973, 51, 2507. [all data]

Nee, Osterwalder, et al., 2006
Nee, M.J.; Osterwalder, A.; Zhou, J.; Neumark, D.M., Slow electron velocity-map imaging photoelectron spectra of the methoxide anion, J. Chem. Phys., 2006, 125, 1, 014306, https://doi.org/10.1063/1.2212411 . [all data]

Osborn, Leahy, et al., 1998
Osborn, D.L.; Leahy, D.J.; Kim, E.H.; deBeer, E.; Neumark, D.M., Photoelectron spectroscopy of CH3O- and CD3O-, Chem. Phys. Lett., 1998, 292, 4-6, 651-655, https://doi.org/10.1016/S0009-2614(98)00717-9 . [all data]

Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr., The gas phase acidity scale from methanol to phenol, J. Am. Chem. Soc., 1979, 101, 6047. [all data]

Haas and Harrison, 1993
Haas, M.J.; Harrison, A.G., The Fragmentation of Proton-Bound Cluster Ions and the Gas-Phase Acidities of Alcohols, Int. J. Mass Spectrom. Ion Proc., 1993, 124, 2, 115, https://doi.org/10.1016/0168-1176(93)80003-W . [all data]

Meot-ner and Sieck, 1986
Meot-ner, M.; Sieck, L.W., Relative acidities of water and methanol, and the stabilities of the dimer adducts, J. Phys. Chem., 1986, 90, 6687. [all data]

Meot-Ner (Mautner), 1992
Meot-Ner (Mautner), M., Intermolecular Forces in Organic Clusters, J. Am. Chem. Soc., 1992, 114, 9, 3312, https://doi.org/10.1021/ja00035a024 . [all data]

Szulejko and McMahon, 1992
Szulejko, J.; McMahon, T.B., personal communication, 1992. [all data]

Meot-Ner(Mautner), 1986
Meot-Ner(Mautner), M., Comparative Stabilities of Cationic and Anionic Hydrogen-Bonded Networks. Mixed Clusters of Water-Methanol, J. Am. Chem. Soc., 1986, 108, 20, 6189, https://doi.org/10.1021/ja00280a014 . [all data]

Grimsrud and Kebarle, 1973
Grimsrud, E.P.; Kebarle, P., Gas Phase Ion Equilibria Studies of the Solvation of the Hydrogen Ion by Methanol, Dimethyl Ether and Water. Effect of Hydrogen Bonding, J. Am. Chem. Soc., 1973, 95, 24, 7939, https://doi.org/10.1021/ja00805a002 . [all data]

Larson and McMahon, 1982
Larson, J.W.; McMahon, T.B., Formation, Thermochemistry, and Relative Stabilities of Proton - Bound dimers of Oxygen n - Donor Bases from Ion Cyclotron Resonance Solvent - Exchange Equilibria Measurements, J. Am. Chem. Soc., 1982, 104, 23, 6255, https://doi.org/10.1021/ja00387a016 . [all data]

Lias, Liebman, et al., 1984
Lias, S.G.; Liebman, J.F.; Levin, R.D., Evaluated gas phase basicities and proton affinities of molecules heats of formation of protonated molecules, J. Phys. Chem. Ref. Data, 1984, 13, 695. [all data]

Keesee and Castleman, 1986
Keesee, R.G.; Castleman, A.W., Jr., Thermochemical data on Ggs-phase ion-molecule association and clustering reactions, J. Phys. Chem. Ref. Data, 1986, 15, 1011. [all data]

Paul and Kebarle, 1990
Paul, G.J.C.; Kebarle, P., Thermodynamics of the Association Reactions OH- - H2O = HOHOH- and CH3O- - CH3OH = CH3OHOCH3- in the Gas Phase, J. Phys. Chem., 1990, 94, 12, 5184, https://doi.org/10.1021/j100375a076 . [all data]

Caldwell, Rozeboom, et al., 1984
Caldwell, G.; Rozeboom, M.D.; Kiplinger, J.P.; Bartmess, J.E., Anion-alcohol hydrogen bond strengths in the gas phase, J. Am. Chem. Soc., 1984, 106, 4660. [all data]

Moylan, Dodd, et al., 1985
Moylan, C.R.; Dodd, J.A.; Brauman, J.I., Electron photodetachment spectroscopy of Sslvated anions. A probe of structure and energetics, Chem. Phys. Lett., 1985, 118, 38. [all data]

Mustanir, Matsuoka, et al., 2006
Mustanir; Matsuoka, M.; Mishima, M.; Koch, H., Stability of complexes of phenylacetylides and benzyl alkoxides with methanol in the gas phase. Acid-base correlation in the ionic hydrogen-bond strength, Bull. Chem. Soc. Japan, 2006, 79, 7, 1118-1125, https://doi.org/10.1246/bcsj.79.1118 . [all data]

MacKay and Bohme, 1978
MacKay, G.I.; Bohme, D.K., Proton-Transfer Reactions in Nitromethane at 297K, Int. J. Mass Spectrom. Ion Phys., 1978, 26, 4, 327, https://doi.org/10.1016/0020-7381(78)80052-7 . [all data]

Meot-Ner and Sieck, 1986
Meot-Ner, M.; Sieck, L.W., The ionic hydrogen bond and ion solvation. 5. OH...O^- bonds. Gas phase solvation and clustering of alkoxide and carboxylate anions, J. Am. Chem. Soc., 1986, 108, 7525. [all data]

DeTuri and Ervin, 1999
DeTuri, V.F.; Ervin, K.M., Competitive threshold collision-induced dissociation: Gas-phase acidities and bond dissociation energies for a series of alcohols, J. Phys. Chem. A, 1999, 103, 35, 6911-6920, https://doi.org/10.1021/jp991459m . [all data]

Mackay, Rakshit, et al., 1982
Mackay, G.I.; Rakshit, A.B.; Bohme, D.K., An Experimental Study of the Reactivity and Relative Basicity of the Methoxide Anion in the Gas Phase at Room Temperature, and their Perturbation by Methanol Solvent, Can. J. Chem., 1982, 60, 20, 2594, https://doi.org/10.1139/v82-373 . [all data]

Caldwell and Kebarle, 1986
Caldwell, G.; Kebarle, P., Mobility of Gaseous Ions in Weak Electric Fields in Unpublished results, 1986. [all data]

Taft, 1983
Taft, R.W., Protonic acidities and basicities in the gas phase and in solution: Substiuent and solvent effects, Prog. Phys. Org. Chem., 1983, 14, 247. [all data]

Bogdanov, Peschke, et al., 1999
Bogdanov, B.; Peschke, M.; Tonner, D.S.; Szulejko, J.E.; McMahon, T.B., Stepwise solvation of halides by alcohol molecules in the gas phase, Int. J. Mass Spectrom., 1999, 187, 707-725, https://doi.org/10.1016/S1387-3806(98)14180-5 . [all data]

Chabinyc and Brauman, 1999
Chabinyc, M.L.; Brauman, J.I., Hydrogen bond strength and acidity. Structural and energetic correlations for acetylides and alcohols, J. Phys. Chem. A, 1999, 103, 46, 9163-9166, https://doi.org/10.1021/jp992852v . [all data]

Larson, Szulejko, et al., 1988
Larson, J.W.; Szulejko, J.E.; McMahon, T.B., Gas Phase Lewis Acid-Base Interactions. An Experimental Determination of Cyanide Binding Energies From Ion Cyclotron Resonance and High-Pressure Mass Spectrometric Equilibrium Measurements., J. Am. Chem. Soc., 1988, 110, 23, 7604, https://doi.org/10.1021/ja00231a004 . [all data]

Meot-ner, 1988
Meot-ner, M., Ionic Hydrogen Bond and Ion Solvation. ₆. Interaction Energies of the Acetate Ion with Organic Molecules. Comparison of CH₃COO^- with Cl^-, CN^-, and SH^-, J. Am. Chem. Soc., 1988, 110, 12, 3854, https://doi.org/10.1021/ja00220a022 . [all data]

Larson and McMahon, 1987
Larson, J.W.; McMahon, T.B., Hydrogen bonding in gas phase anions. The energetics of interaction between cyanide ion and bronsted acids, J. Am. Chem. Soc., 1987, 109, 6230. [all data]

Payzant, Yamdagni, et al., 1971
Payzant, J.D.; Yamdagni, R.; Kebarle, P., Hydration of CN-, NO₂-, NO₃-, and HO- in the gas phase, Can. J. Chem., 1971, 49, 3308. [all data]

Rodgers and Armentrout, 2000
Rodgers, M.T.; Armentrout, P.B., Noncovalent Metal-Ligand Bond Energies as Studied by Threshold Collision-Induced Dissociation, Mass Spectrom. Rev., 2000, 19, 4, 215, https://doi.org/10.1002/1098-2787(200007)19:4<215::AID-MAS2>3.0.CO;2-X . [all data]

Woodin and Beauchamp, 1978
Woodin, R.L.; Beauchamp, J.L., Bonding of Li+ to Lewis Bases in the Gas Phase. Reversals in Methyl Substituent Effects for Different Reference Acids, J. Am. Chem. Soc., 1978, 100, 2, 501, https://doi.org/10.1021/ja00470a024 . [all data]

Dzidic and Kebarle, 1970
Dzidic, I.; Kebarle, P., Hydration of the Alkali Ions in the Gas Phase. Enthalpies and Entropies of Reactions M+(H2O)n-1 + H2O = M+(H2O)n, J. Phys. Chem., 1970, 74, 7, 1466, https://doi.org/10.1021/j100702a013 . [all data]

Staley and Beauchamp, 1975
Staley, R.H.; Beauchamp, J.L., Intrinsic Acid - Base Properties of Molecules. Binding Energies of Li+ to pi - and n - Donor Bases, J. Am. Chem. Soc., 1975, 97, 20, 5920, https://doi.org/10.1021/ja00853a050 . [all data]

Caldwell and Kebarle, 1984
Caldwell, G.; Kebarle, P., Binding energies and structural effects in halide anion-ROH and -RCOOH complexes from gas phase equilibria measurements, J. Am. Chem. Soc., 1984, 106, 967. [all data]

Hiraoka and Yamabe, 1991
Hiraoka, K.; Yamabe, S., Solvation of Halide Ions with CH3OH in the gas Phase, Int. J. Mass Spectrom. Ion Proc., 1991, 109, 133, https://doi.org/10.1016/0168-1176(91)85101-Q . [all data]

Caldwell, Masucci, et al., 1989
Caldwell, G.W.; Masucci, J.A.; Ikonomou, M.G., Negative Ion Chemical Ionization Mass Spectrometry - Binding of Molecules to Bromide and Iodide Anions, Org. Mass Spectrom., 1989, 24, 1, 8, https://doi.org/10.1002/oms.1210240103 . [all data]

Tanabe, Morgon, et al., 1996
Tanabe, F.K.J.; Morgon, N.H.; Riveros, J.M., Relative Bromide and Iodide Affinity of Simple Solvent Molecules Determined by FT-ICR, J. Phys. Chem., 1996, 100, 8, 2862-2866, https://doi.org/10.1021/jp952290p . [all data]

Larson and McMahon, 1983
Larson, J.W.; McMahon, T.B., Strong hydrogen bonding in gas-phase anions. An ion cyclotron resonance determination of fluoride binding energetics to bronsted acids from gas-phase fluoride exchange equilibria measurements, J. Am. Chem. Soc., 1983, 105, 2944. [all data]

Arshadi, Yamdagni, et al., 1970
Arshadi, M.; Yamdagni, R.; Kebarle, P., Hydration of Halide Negative Ions in the Gas Phase. II. Comparison of Hydration Energies for the Alkali Positive and Halide Negative Ions, J. Phys. Chem., 1970, 74, 7, 1475, https://doi.org/10.1021/j100702a014 . [all data]

Hiraoka, Mizure, et al., 1988
Hiraoka, K.; Mizure, S.; Yamabe, S.; Nakatsuji, Y., Gas Phase Clustering Reactions of CN^- and CH₂CN^- with MeCN, Chem. Phys. Lett., 1988, 148, 6, 497, https://doi.org/10.1016/0009-2614(88)80320-8 . [all data]

Wojtyniak and Stone, 1986
Wojtyniak, A.C.M.; Stone, A.J., A High-Pressure Mass Spectrometric Study of the Bonding of Trimethylsilylium to Oxygen and Aromatic Bases, Can. J. Chem., 1986, 74, 59. [all data]

Amicangelo and Armentrout, 2001
Amicangelo, J.C.; Armentrout, P.B., Relative and Absolute Bond Dissociation Energies of Sodium Cation Complexes Determined Using Competitive Collision-Induced Dissociation Experiments, Int. J. Mass Spectrom., 2001, 212, 1-3, 301, https://doi.org/10.1016/S1387-3806(01)00494-8 . [all data]

Armentrout and Rodgers, 2000
Armentrout, P.B.; Rodgers, M.T., An Absolute Sodium Cation Affinity Scale: Threshold Collision-Induced Dissociation Experiments and ab Initio Theory, J. Phys. Chem A, 2000, 104, 11, 2238, https://doi.org/10.1021/jp991716n . [all data]

Hoyau, Norrman, et al., 1999
Hoyau, S.; Norrman, K.; McMahon, T.B.; Ohanessian, G., A Quantitative Basis for a Scale of Na+ Affinities of Organic and Small Biological Molecules in the Gas Phase, J. Am. Chem. Soc., 1999, 121, 38, 8864, https://doi.org/10.1021/ja9841198 . [all data]

Guo, Conklin, et al., 1989
Guo, B.C.; Conklin, B.J.; Castleman, A.W., Thermochemical Properties of Ion Complexes Na+(M)n in the Gas Phase, J. Am. Chem. Soc., 1989, 111, 17, 6506, https://doi.org/10.1021/ja00199a005 . [all data]

McMahon and Ohanessian, 2000
McMahon, T.B.; Ohanessian, G., An Experimental and Ab Initio Study of the Nature of the Binding in Gas-Phase Complexes of Sodium Ions, Chem. Eur. J., 2000, 6, 16, 2931, https://doi.org/10.1002/1521-3765(20000818)6:16<2931::AID-CHEM2931>3.0.CO;2-7 . [all data]

Wiberg, Morgan, et al., 1994
Wiberg, K.B.; Morgan, K.M.; Maltz, H., Thermochemistry of carbonyl reactions. 6. A study of hydration equilibria, J. Am. Chem. Soc., 1994, 116, 11067-11077. [all data]

Wiberg and Squires, 1979
Wiberg, K.B.; Squires, R.R., Thermodynamics of hydrolysis aliphatic ketals. An entropy component of steric effects, J. Am. Chem. Soc., 1979, 101, 5512-5515. [all data]

Wiberg and Squires, 1979, 2
Wiberg, K.B.; Squires, R.R., A microprocessor-controlled system for precise measurement of temperature changes. Determination of the enthalpies of hydrolysis of some polyoxygenated hydrocarbons, J. Chem. Thermodyn., 1979, 11, 773-786. [all data]

Stern and Dorer, 1962
Stern, J.H.; Dorer, F.H., Standard heats of formation of 2,2-Dimethoxypropane (1), and 2,2 -Diethoxypropane (1). Group additivity theory and calculated heats of formation and five ketals, J. Phys. Chem., 1962, 66, 97-99. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

El-Shall, Schriver, et al., 1989
El-Shall, M.S.; Schriver, K.E.; Whetten, R.L.; Meot-Ner (Mautner), M., Ion/Molecule Clustering Thermochemistry by Laser Ionization High - Pressure Mass Spectrometry, J. Phys. Chem., 1989, 93, 24, 7969, https://doi.org/10.1021/j100361a002 . [all data]

Chowdhury, Grimsrud, et al., 1987
Chowdhury, S.; Grimsrud, E.P.; Kebarle, P., Bonding of Charged Delocalized Anions to Protic and Dipolar Aprotic Solvent Molecules, J. Phys. Chem., 1987, 91, 10, 2551, https://doi.org/10.1021/j100294a021 . [all data]

Chowdhury, 1987
Chowdhury, S. Grimsrud, Bonding of Charge Delocalized Anions to Protic and Dipolar Aprotic Solvents, J. Phys. Chem., 1987, 91, 10, 2551, https://doi.org/10.1021/j100294a021 . [all data]

Hiraoka, Grimsrud, et al., 1974
Hiraoka, K.; Grimsrud, E.P.; Kebarle, P., Gas Phase Ion Equilibria Studies of the Hydrogen Ion in Water - Dimethyl Ether and Methanol - Dimethyl Ether Mixtures, J. Am. Chem. Soc., 1974, 96, 11, 3359, https://doi.org/10.1021/ja00818a004 . [all data]

Notes

Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), References

Symbols used in this document:

T Temperature

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
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
Customer support for NIST Standard Reference Data products.

NIST Chemistry WebBook, SRD 69

Methyl Alcohol

Data at NIST subscription sites:

Reaction thermochemistry data

Reactions 1 to 50

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Mass spectrum (electron ionization)

Spectrum

Help

Credits

Additional Data

References

Notes

T	Temperature
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