Methyl Alcohol

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Gas phase thermochemistry data

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

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

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
ΔfH°gas-205. ± 10.kJ/molAVGN/AAverage of 9 values; Individual data points
Quantity Value Units Method Reference Comment
ΔcH°gas-763.68 ± 0.20kJ/molCmRossini, 1932Flame Calorimetry; Corresponding ΔfHºgas = -201.49 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
34.0050.Thermodynamics Research Center, 1997p=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
36.95100.
38.64150.
39.71200.
42.59273.15
44.06 ± 0.03298.15
44.17300.
51.63400.
59.70500.
67.19600.
73.86700.
79.76800.
84.95900.
89.541000.
93.571100.
97.121200.
100.241300.
102.981400.
105.401500.
110.21750.
113.82000.
116.52250.
118.62500.
120.2750.
121.3000.

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
42.4 ± 1.3279.Stromsoe E., 1970Heat 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/mol*K. 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
48.0 ± 1.3345.6
46.8 ± 1.2347.35
46.1 ± 1.3349.65
47.6 ± 1.2356.55
46.7 ± 1.3358.15
48.2 ± 1.3358.85
48.8 ± 1.3359.85
50.3 ± 1.3368.15
49.0 ± 1.2373.35
51.3 ± 1.3382.15
51.1 ± 1.2398.95
52.3 ± 1.3401.15
51.3 ± 1.2401.35
52.01 ± 0.42403.2
53.2 ± 1.3420.15
53.9 ± 1.2431.45
54.8 ± 1.2442.15
55.9 ± 1.3442.65
56.0 ± 1.2457.35
57.20 ± 0.42464.0
57.8 ± 1.2477.75
58.4 ± 1.2485.05
59.5 ± 1.2498.95
60.4 ± 1.3521.2
61.4 ± 1.2521.35
64.3 ± 1.2555.95
66.4 ± 1.2581.35
66.8 ± 1.2585.35

Phase change data

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

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

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
Tboil337.8 ± 0.3KAVGN/AAverage of 154 out of 171 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus176. ± 1.KAVGN/AAverage of 13 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple175.5 ± 0.5KAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
Tc513. ± 1.KAVGN/AAverage of 27 out of 31 values; Individual data points
Quantity Value Units Method Reference Comment
Pc81. ± 1.barAVGN/AAverage of 17 out of 20 values; Individual data points
Quantity Value Units Method Reference Comment
Vc0.117l/molN/AGude and Teja, 1995 
Vc0.113024l/molN/ACraven and de Reuck, 1986TRC
Vc0.118l/molN/AFrancesconi, Lentz, et al., 1981Uncertainty assigned by TRC = 0.004 l/mol; TRC
Vc0.11663l/molN/AZubarev and Bagdonas, 1969Uncertainty assigned by TRC = 0.0035 l/mol; TRC
Quantity Value Units Method Reference Comment
ρc8.51 ± 0.07mol/lAVGN/AAverage of 7 values; Individual data points
Quantity Value Units Method Reference Comment
ΔvapH°37.6 ± 0.5kJ/molAVGN/AAverage of 11 out of 12 values; Individual data points

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
35.21337.7N/AMajer and Svoboda, 1985 
39.2258.AStephenson and Malanowski, 1987Based on data from 175. to 273. K.; AC
36.9353.AStephenson and Malanowski, 1987Based on data from 338. to 487. K.; AC
43.7213.AStephenson and Malanowski, 1987Based on data from 188. to 228. K.; AC
38.9275.AStephenson and Malanowski, 1987Based on data from 224. to 290. K.; AC
38.3300.AStephenson and Malanowski, 1987Based on data from 285. to 345. K.; AC
37.0350.AStephenson and Malanowski, 1987Based on data from 335. to 376. K.; AC
36.1388.AStephenson and Malanowski, 1987Based on data from 373. to 458. K.; AC
35.1468.AStephenson and Malanowski, 1987Based on data from 453. to 513. K.; AC
32.7373.CYerlett and Wormald, 1986AC
28.1423.CYerlett and Wormald, 1986AC
20.6473.CYerlett and Wormald, 1986AC
7.4510.CYerlett and Wormald, 1986AC
37.5331.EBCervenkova and Boublik, 1984Based on data from 316. to 336. K.; AC
38.3303.N/AGibbard and Creek, 1974Based on data from 288. to 337. K. See also Boublik, Fried, et al., 1984.; AC
35.2 ± 0.1338.CCounsell and Lee, 1973AC
35.6 ± 0.1331.CCounsell and Lee, 1973AC
36.2 ± 0.1321.CCounsell and Lee, 1973AC
37.0 ± 0.1306.CCounsell and Lee, 1973AC
36.7 ± 0.1313.CSvoboda, Veselý, et al., 1973AC
36.2 ± 0.1323.CSvoboda, Veselý, et al., 1973AC
35.6 ± 0.1333.CSvoboda, Veselý, et al., 1973AC
35.3 ± 0.1338.CSvoboda, Veselý, et al., 1973AC
34.7 ± 0.1343.CSvoboda, Veselý, et al., 1973AC
37.0352.N/AWilhoit and Zwolinski, 1973Based on data from 337. to 383. K.; AC
38.7290.EBBoublík and Aim, 1972Based on data from 275. to 336. K. See also Stephenson and Malanowski, 1987.; AC
38.3303.EBAmbrose and Sprake, 1970Based on data from 288. to 357. K.; AC
36.3368.N/AHirata, Suda, et al., 1967Based on data from 353. to 483. K.; AC
38.4293.N/AKlyueva, Mischenko, et al., 1960Based on data from 278. to 323. K.; AC

Enthalpy of vaporization

ΔvapH = A exp(-αTr) (1 − Tr)β
    ΔvapH = Enthalpy of vaporization (at saturation pressure) (kJ/mol)
    Tr = reduced temperature (T / Tc)

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Temperature (K) 298. to 477.
A (kJ/mol) 45.3
α -0.31
β 0.4241
Tc (K) 512.6
ReferenceMajer and Svoboda, 1985

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
353.5 to 512.635.158531569.613-34.846Ambrose, Sprake, et al., 1975Coefficents calculated by NIST from author's data.
288.1 to 356.835.204091581.341-33.50Ambrose and Sprake, 1970Coefficents calculated by NIST from author's data.
353. to 483.5.313011676.569-21.728Hirata and Suda, 1967Coefficents calculated by NIST from author's data.

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Reference Comment
3.18175.3Domalski and Hearing, 1996AC
2.196176.Maass and Walbauer, 1925DH

Entropy of fusion

ΔfusS (J/mol*K) Temperature (K) Reference Comment
12.5176.Maass and Walbauer, 1925DH

Entropy of fusion

ΔfusS (J/mol*K) Temperature (K) Reference Comment
3.7161.1Domalski and Hearing, 1996CAL
18.1175.3
4.0157.3
18.3175.6

Enthalpy of phase transition

ΔHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.6360157.34crystaline, IIcrystaline, ICarlson and Westrum, 1971DH
3.2154175.59crystaline, IliquidCarlson and Westrum, 1971DH
1.540103.crystalineglassSugisaki, Suga, et al., 1968Glass transition.; DH
0.711157.8crystaline, IIcrystaline, IStaveley and Gupta, 1949DH
3.159175.4crystaline, IliquidStaveley and Gupta, 1949DH
0.6456157.4crystaline, IIcrystaline, IKelley, 1929DH
3.167175.2crystaline, IliquidKelley, 1929DH
0.590161.1crystaline, IIcrystaline, IParks, 1925DH
3.176175.3crystaline, IliquidParks, 1925DH

Entropy of phase transition

ΔStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
4.04157.34crystaline, IIcrystaline, ICarlson and Westrum, 1971DH
18.31175.59crystaline, IliquidCarlson and Westrum, 1971DH
14.95103.crystalineglassSugisaki, Suga, et al., 1968Glass; DH
4.51157.8crystaline, IIcrystaline, IStaveley and Gupta, 1949DH
18.01175.4crystaline, IliquidStaveley and Gupta, 1949DH
4.10157.4crystaline, IIcrystaline, IKelley, 1929DH
18.08175.2crystaline, IliquidKelley, 1929DH
3.66161.1crystaline, IIcrystaline, IParks, 1925DH
18.12175.3crystaline, IliquidParks, 1925DH

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, Phase change data, Mass spectrum (electron ionization), References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

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

Chlorine anion + Methyl Alcohol = (Chlorine anion • Methyl Alcohol)

By formula: Cl- + CH4O = (Cl- • CH4O)

Quantity Value Units Method Reference Comment
ΔrH°69. ± 10.kJ/molAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrS°94.6J/mol*KHPMSEvans and Keesee, 1991gas phase; M
ΔrS°101.J/mol*KPHPMSHiraoka and Mizuse, 1987gas phase; M
ΔrS°92.0J/mol*KPHPMSSieck, 1985gas phase; M
ΔrS°95.8J/mol*KN/ALarson and McMahon, 1984gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
ΔrS°61.9J/mol*KPHPMSYamdagni, Payzant, et al., 1973gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrG°42. ± 3.kJ/molAVGN/AAverage of 10 values; Individual data points

CH3O- + Hydrogen cation = Methyl Alcohol

By formula: CH3O- + H+ = CH4O

Quantity Value Units Method Reference Comment
ΔrH°1597. ± 8.kJ/molAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrG°1573.3 ± 2.6kJ/molH-TSNee, Osterwalder, et al., 2006gas phase; B
ΔrG°1573.4 ± 2.3kJ/molH-TSOsborn, Leahy, et al., 1998gas phase; B
ΔrG°1565. ± 8.4kJ/molIMREBartmess, Scott, et al., 1979gas 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
ΔrG°1567. ± 8.8kJ/molH-TSHaas and Harrison, 1993gas phase; Both metastable and 50 eV collision energy.; B
ΔrG°1569.4 ± 2.5kJ/molTDEqMeot-ner and Sieck, 1986gas phase; Experimental entropy: 21.5 eu, 0.6 less than H2O; B

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°136.kJ/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrH°135.kJ/molPHPMSSzulejko and McMahon, 1992gas phase; M
ΔrH°134.kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; M
ΔrH°138.kJ/molPHPMSGrimsrud and Kebarle, 1973gas phase; M
ΔrH°141.kJ/molICRLarson and McMahon, 1982gas 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
ΔrS°121.J/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrS°122.J/mol*KPHPMSSzulejko and McMahon, 1992gas phase; M
ΔrS°111.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; M
ΔrS°128.J/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase; M
ΔrS°119.J/mol*KN/ALarson and McMahon, 1982gas 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
ΔrG°105.kJ/molICRLarson and McMahon, 1982gas 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- • Methyl Alcohol)

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

Quantity Value Units Method Reference Comment
ΔrH°123. ± 4.2kJ/molTDAsPaul and Kebarle, 1990gas phase; B,M
ΔrH°120.5 ± 1.3kJ/molTDAsMeot-ner and Sieck, 1986gas phase; B,M
ΔrH°123. ± 10.kJ/molTDAsCaldwell, Rozeboom, et al., 1984gas 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
ΔrH°79.5 ± 8.4kJ/molN/AMoylan, Dodd, et al., 1985gas phase; B
Quantity Value Units Method Reference Comment
ΔrS°133.J/mol*KPHPMSPaul and Kebarle, 1990gas phase; M
ΔrS°112.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
ΔrG°84.94kJ/molIMREMustanir, Matsuoka, et al., 2006gas phase; B
ΔrG°82.8 ± 4.2kJ/molTDAsPaul and Kebarle, 1990gas phase; B
ΔrG°87.0 ± 2.1kJ/molTDAsMeot-ner and Sieck, 1986gas phase; B
ΔrG°84.9 ± 6.7kJ/molTDAsCaldwell, Rozeboom, et al., 1984gas 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

ΔrG° (kJ/mol) T (K) Method Reference Comment
79.9296.FAMacKay and Bohme, 1978gas phase; From thermochemical cycle,switching reaction(CH3O-)H2O; Meot-Ner(Mautner), 1986; M

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

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

Quantity Value Units Method Reference Comment
ΔrH°107. ± 4.2kJ/molTDEqMeot-Ner and Sieck, 1986gas phase; B,M
ΔrH°97.9 ± 9.2kJ/molCIDTDeTuri and Ervin, 1999gas phase; B
ΔrH°109. ± 10.kJ/molN/ACaldwell, Rozeboom, et al., 1984gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; B,M
Quantity Value Units Method Reference Comment
ΔrS°117.J/mol*KN/AMeot-Ner and Sieck, 1986gas phase; Entropy change calculated or estimated; M
ΔrS°123.J/mol*KN/ACaldwell, Rozeboom, et al., 1984gas 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
ΔrG°42.68kJ/molIMREMustanir, Matsuoka, et al., 2006gas phase; B
ΔrG°71.5 ± 6.7kJ/molTDEqMeot-Ner and Sieck, 1986gas phase; B
ΔrG°72.4 ± 6.7kJ/molIMRECaldwell, Rozeboom, et al., 1984gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; B,M

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

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

Quantity Value Units Method Reference Comment
ΔrH°114. ± 12.kJ/molIMRECaldwell, Rozeboom, et al., 1984gas 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
ΔrH°107. ± 7.9kJ/molCIDTDeTuri and Ervin, 1999gas phase; B
Quantity Value Units Method Reference Comment
ΔrS°123.J/mol*KN/ACaldwell, Rozeboom, et al., 1984gas 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
ΔrG°77.8 ± 8.4kJ/molIMRECaldwell, Rozeboom, et al., 1984gas 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

ΔrG° (kJ/mol) T (K) Method Reference Comment
56.1296.FAMackay, Rakshit, et al., 1982gas phase; From thermochemical cycle,switching reaction(CH3O-)CH3OH; Caldwell and Kebarle, 1986, Taft, 1983; M

(Chlorine anion • Methyl Alcohol) + Methyl Alcohol = (Chlorine anion • 2Methyl Alcohol)

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

Quantity Value Units Method Reference Comment
ΔrH°59.0 ± 1.7kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°57.32 ± 0.84kJ/molTDAsEvans and Keesee, 1991gas phase; B,M
ΔrH°59.0 ± 4.2kJ/molTDAsHiraoka and Mizuse, 1987gas phase; B,M
ΔrH°54.4 ± 2.9kJ/molTDAsYamdagni, Payzant, et al., 1973gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°101.J/mol*KPHPMSHiraoka and Mizuse, 1987gas phase; M
ΔrS°92.0J/mol*KHPMSEvans and Keesee, 1991gas phase; M
ΔrS°81.2J/mol*KPHPMSYamdagni, Payzant, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°30.5kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°29.7kJ/molTDAsEvans and Keesee, 1991gas phase; B
ΔrG°28. ± 4.2kJ/molTDAsHiraoka and Mizuse, 1987gas phase; B
ΔrG°30.1 ± 1.7kJ/molTDAsYamdagni, Payzant, et al., 1973gas phase; B

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

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

Quantity Value Units Method Reference Comment
ΔrH°48.12 ± 0.84kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°45.2 ± 1.3kJ/molTDAsEvans and Keesee, 1991gas phase; B,M
ΔrH°49.4 ± 4.2kJ/molTDAsHiraoka and Mizuse, 1987gas phase; B,M
ΔrH°51.5 ± 2.5kJ/molN/AYamdagni, Payzant, et al., 1973gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°95.8J/mol*KPHPMSHiraoka and Mizuse, 1987gas phase; M
ΔrS°95.0J/mol*KHPMSEvans and Keesee, 1991gas phase; M
ΔrS°98.7J/mol*KPHPMSYamdagni, Payzant, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°21.2kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°16.7kJ/molTDAsEvans and Keesee, 1991gas phase; B
ΔrG°21. ± 4.2kJ/molTDAsHiraoka and Mizuse, 1987gas phase; B
ΔrG°21.8 ± 1.3kJ/molTDAsYamdagni, Payzant, et al., 1973gas phase; B

C8H5- + Methyl Alcohol = (C8H5- • Methyl Alcohol)

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

Quantity Value Units Method Reference Comment
ΔrH°90.0 ± 8.4kJ/molIMREChabinyc and Brauman, 1999gas phase; B
ΔrH°90. ± 12.kJ/molN/ACaldwell, Rozeboom, et al., 1984gas 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
ΔrS°123.J/mol*KN/ACaldwell, Rozeboom, et al., 1984gas 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
ΔrG°46.0 ± 8.4kJ/molIMREChabinyc and Brauman, 1999gas phase; B
ΔrG°53.1 ± 8.4kJ/molIMRECaldwell, Rozeboom, et al., 1984gas 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- • Methyl Alcohol)

By formula: CN- + CH4O = (CN- • CH4O)

Quantity Value Units Method Reference Comment
ΔrH°65.7 ± 3.3kJ/molTDAsLarson, Szulejko, et al., 1988gas phase; B,M
ΔrH°69.5 ± 4.2kJ/molTDAsMeot-ner, 1988gas phase; B
ΔrH°69. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°96.J/mol*KPHPMSLarson, Szulejko, et al., 1988gas phase; M
ΔrS°102.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
ΔrG°36.8 ± 0.84kJ/molTDAsLarson, Szulejko, et al., 1988gas phase; B
ΔrG°43.5 ± 4.2kJ/molTDAsMeot-ner, 1988gas phase; B
ΔrG°38. ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

Lithium ion (1+) + Methyl Alcohol = (Lithium ion (1+) • Methyl Alcohol)

By formula: Li+ + CH4O = (Li+ • CH4O)

Quantity Value Units Method Reference Comment
ΔrH°154. ± 7.9kJ/molCIDTRodgers and Armentrout, 2000RCD
ΔrH°159.kJ/molICRWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H20, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
ΔrH°160.kJ/molICRStaley and Beauchamp, 1975gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 extrapolated; M
Quantity Value Units Method Reference Comment
ΔrS°110.J/mol*KN/AWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H20, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
Quantity Value Units Method Reference Comment
ΔrG°127.kJ/molICRWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H20, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M

Iodide + Methyl Alcohol = (Iodide • Methyl Alcohol)

By formula: I- + CH4O = (I- • CH4O)

Quantity Value Units Method Reference Comment
ΔrH°49.79 ± 0.84kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°47.3 ± 4.2kJ/molTDAsCaldwell and Kebarle, 1984gas phase; B,M
ΔrH°46.9kJ/molPHPMSHiraoka and Yamabe, 1991gas phase; M
ΔrH°46.kJ/molPHPMSCaldwell, Masucci, et al., 1989gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°71.5J/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
ΔrS°74.5J/mol*KPHPMSCaldwell and Kebarle, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°24.1kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°25. ± 4.2kJ/molTDAsCaldwell and Kebarle, 1984gas phase; B
ΔrG°24. ± 8.4kJ/molIMRETanabe, Morgon, et al., 1996gas phase; Anchored to H2O..I- of Caldwell and Kebarle, 1984; B

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°127.kJ/molICRLarson and McMahon, 1982gas 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
ΔrS°113.J/mol*KN/ALarson and McMahon, 1982gas 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
ΔrG°93.3kJ/molICRLarson and McMahon, 1982gas 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+ • Methyl Alcohol)

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

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

Quantity Value Units Method Reference Comment
ΔrH°124.kJ/molICRLarson and McMahon, 1982gas 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
ΔrS°111.J/mol*KN/ALarson and McMahon, 1982gas 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
ΔrG°90.8kJ/molICRLarson and McMahon, 1982gas 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- • Methyl Alcohol)

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

Quantity Value Units Method Reference Comment
ΔrH°113. ± 12.kJ/molN/ACaldwell, Rozeboom, et al., 1984gas 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
ΔrS°123.J/mol*KN/ACaldwell, Rozeboom, et al., 1984gas 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
ΔrG°76.1 ± 8.4kJ/molIMRECaldwell, Rozeboom, et al., 1984gas 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

Fluorine anion + Methyl Alcohol = (Fluorine anion • Methyl Alcohol)

By formula: F- + CH4O = (F- • CH4O)

Quantity Value Units Method Reference Comment
ΔrH°124. ± 8.4kJ/molIMRELarson and McMahon, 1983gas phase; B,M
ΔrH°123. ± 9.2kJ/molCIDTDeTuri and Ervin, 1999gas phase; B
ΔrH°97.5 ± 8.4kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°105.J/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
ΔrS°94.6J/mol*KN/ALarson and McMahon, 1983gas phase; switching reaction(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M
Quantity Value Units Method Reference Comment
ΔrG°95.4 ± 8.4kJ/molIMRELarson and McMahon, 1983gas phase; B,M
ΔrG°66.1 ± 8.4kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B

(Chlorine anion • 3Methyl Alcohol) + Methyl Alcohol = (Chlorine anion • 4Methyl Alcohol)

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

Quantity Value Units Method Reference Comment
ΔrH°43.9 ± 4.2kJ/molTDAsHiraoka and Mizuse, 1987gas phase; B,M
ΔrH°43.93kJ/molTDAsEvans and Keesee, 1991gas phase; B
ΔrH°46.9 ± 2.5kJ/molTDAsYamdagni, Payzant, et al., 1973gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°95.8J/mol*KPHPMSHiraoka and Mizuse, 1987gas phase; M
ΔrS°110.J/mol*KPHPMSYamdagni, Payzant, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°15. ± 4.2kJ/molTDAsHiraoka and Mizuse, 1987gas phase; B
ΔrG°15.5kJ/molTDAsEvans and Keesee, 1991gas phase; B
ΔrG°13.8 ± 0.84kJ/molTDAsYamdagni, Payzant, et al., 1973gas phase; B

Bromine anion + Methyl Alcohol = (Bromine anion • Methyl Alcohol)

By formula: Br- + CH4O = (Br- • CH4O)

Quantity Value Units Method Reference Comment
ΔrH°60.67 ± 0.42kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°58.2 ± 4.2kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°73.6J/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°33.5 ± 0.42kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°36. ± 8.4kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B
ΔrG°35. ± 8.4kJ/molIMRETanabe, Morgon, et al., 1996gas phase; Anchored to H2O..Br- of Hiraoka, Mizure, et al., 19882; B

C3H9Si+ + Methyl Alcohol = (C3H9Si+ • Methyl Alcohol)

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

Quantity Value Units Method Reference Comment
ΔrH°164.kJ/molPHPMSWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°124.J/mol*KN/AWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
106.468.PHPMSWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

Sodium ion (1+) + Methyl Alcohol = (Sodium ion (1+) • Methyl Alcohol)

By formula: Na+ + CH4O = (Na+ • CH4O)

Quantity Value Units Method Reference Comment
ΔrH°97.1 ± 5.4kJ/molCIDCAmicangelo and Armentrout, 2001Anchor NH3=24.41; RCD
ΔrH°91.6 ± 5.9kJ/molCIDTArmentrout and Rodgers, 2000RCD
ΔrH°100. ± 0.8kJ/molHPMSHoyau, Norrman, et al., 1999RCD
ΔrH°111. ± 0.8kJ/molHPMSGuo, Conklin, et al., 1989gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°85800.J/mol*KHPMSHoyau, Norrman, et al., 1999RCD
ΔrS°102.J/mol*KHPMSGuo, Conklin, et al., 1989gas phase; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
72.4298.IMREMcMahon and Ohanessian, 2000Anchor alanine=39.89; RCD

(Chlorine anion • 4Methyl Alcohol) + Methyl Alcohol = (Chlorine anion • 5Methyl Alcohol)

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

Quantity Value Units Method Reference Comment
ΔrH°38. ± 4.2kJ/molTDAsHiraoka and Mizuse, 1987gas phase; B,M
ΔrH°43.9 ± 2.1kJ/molN/AYamdagni, Payzant, et al., 1973gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°90.8J/mol*KPHPMSHiraoka and Mizuse, 1987gas phase; M
ΔrS°107.J/mol*KPHPMSYamdagni, Payzant, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°11. ± 4.2kJ/molTDAsHiraoka and Mizuse, 1987gas phase; B
ΔrG°12.1 ± 0.42kJ/molTDAsYamdagni, Payzant, et al., 1973gas phase; B

Water + Propane, 2,2-dimethoxy- = 2Methyl Alcohol + Acetone

By formula: H2O + C5H12O2 = 2CH4O + C3H6O

Quantity Value Units Method Reference Comment
ΔrH°20.3 ± 0.04kJ/molCmWiberg, Morgan, et al., 1994liquid phase; ALS
ΔrH°20.43 ± 0.04kJ/molCmWiberg and Squires, 1979liquid phase; Heat of hydrolysis; ALS
ΔrH°20.433 ± 0.028kJ/molCmWiberg and Squires, 1979, 2liquid phase; solvent: Water; Hydrolysis; ALS
ΔrH°-16.5 ± 0.2kJ/molCmStern and Dorer, 1962liquid phase; Reanalyzed by Cox and Pilcher, 1970, Original value = 15.4 ± 0.2 kJ/mol; Heat of hydrolysis; ALS

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°88.7kJ/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrH°87.9kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; M
ΔrH°89.1kJ/molPHPMSGrimsrud and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°113.J/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrS°108.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; M
ΔrS°118.J/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase; M

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

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

Quantity Value Units Method Reference Comment
ΔrH°108. ± 12.kJ/molN/ACaldwell, Rozeboom, et al., 1984gas 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
ΔrG°71.1 ± 8.4kJ/molIMRECaldwell, Rozeboom, et al., 1984gas 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- • Methyl Alcohol)

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

Quantity Value Units Method Reference Comment
ΔrH°92. ± 10.kJ/molN/ACaldwell, Rozeboom, et al., 1984gas 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
ΔrG°55.2 ± 6.7kJ/molIMRECaldwell, Rozeboom, et al., 1984gas 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

(Copper ion (1+) • Methyl Alcohol) + Methyl Alcohol = (Copper ion (1+) • 2Methyl Alcohol)

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

Quantity Value Units Method Reference Comment
ΔrH°57.7kJ/molHPMSEl-Shall, Schriver, et al., 1989gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity Value Units Method Reference Comment
ΔrS°100.J/mol*KN/AEl-Shall, Schriver, et al., 1989gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity Value Units Method Reference Comment
ΔrG°26.kJ/molHPMSEl-Shall, Schriver, et al., 1989gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°38.kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°92.J/mol*KN/AMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
13.272.PHPMSMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°39.kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°92.J/mol*KN/AMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
13.272.PHPMSMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°39.kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°92.J/mol*KN/AMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
15.269.PHPMSMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M

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

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
ΔrH°103.kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°120.J/mol*KN/AMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
48.5452.PHPMSMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M

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

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

Quantity Value Units Method Reference Comment
ΔrH°63.18 ± 0.84kJ/molTDAsSieck, 1985gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°109.J/mol*KPHPMSSieck, 1985gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°30.5 ± 1.7kJ/molTDAsSieck, 1985gas phase; B
ΔrG°26. ± 6.7kJ/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
26.343.PHPMSChowdhury, 1987gas phase; M

Copper ion (1+) + Methyl Alcohol = (Copper ion (1+) • Methyl Alcohol)

By formula: Cu+ + CH4O = (Cu+ • CH4O)

Quantity Value Units Method Reference Comment
ΔrH°56.1kJ/molHPMSEl-Shall, Schriver, et al., 1989gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity Value Units Method Reference Comment
ΔrS°100.J/mol*KN/AEl-Shall, Schriver, et al., 1989gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity Value Units Method Reference Comment
ΔrG°25.kJ/molHPMSEl-Shall, Schriver, et al., 1989gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M

(Fluorine anion • Methyl Alcohol) + Methyl Alcohol = (Fluorine anion • 2Methyl Alcohol)

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

Quantity Value Units Method Reference Comment
ΔrH°84.9 ± 1.3kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°80.8 ± 4.2kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°97.1J/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°54.27kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°51.9 ± 8.4kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B

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

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

Quantity Value Units Method Reference Comment
ΔrH°63.2 ± 2.5kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°60.7 ± 4.2kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°88.7J/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°33.7kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°34. ± 8.4kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B

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

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

Quantity Value Units Method Reference Comment
ΔrH°39.7 ± 2.1kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°44.4 ± 4.2kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°90.4J/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°17.8kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°18. ± 8.4kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B

(Bromine anion • Methyl Alcohol) + Methyl Alcohol = (Bromine anion • 2Methyl Alcohol)

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

Quantity Value Units Method Reference Comment
ΔrH°50.21 ± 0.84kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°52.3 ± 4.2kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°86.6J/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°23.5kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°26. ± 8.4kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B

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

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

Quantity Value Units Method Reference Comment
ΔrH°32.2 ± 2.5kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°41. ± 4.2kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°93.7J/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°14.3kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°13. ± 8.4kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B

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

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

Quantity Value Units Method Reference Comment
ΔrH°39.7 ± 0.84kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°46.4 ± 4.2kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°94.6J/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°17.8kJ/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°18. ± 8.4kJ/molTDAsHiraoka and Yamabe, 1991gas phase; B

(Chlorine anion • 10Methyl Alcohol) + Methyl Alcohol = (Chlorine anion • 11Methyl Alcohol)

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

Quantity Value Units Method Reference Comment
ΔrH°31. ± 4.2kJ/molTDAsHiraoka and Mizuse, 1987gas phase; Estimated entropy; single temperature measurement; B,M
Quantity Value Units Method Reference Comment
ΔrS°84.J/mol*KN/AHiraoka and Mizuse, 1987gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrG°5.4 ± 4.2kJ/molTDAsHiraoka and Mizuse, 1987gas phase; Estimated entropy; single temperature measurement; B

(Sodium ion (1+) • Methyl Alcohol) + Methyl Alcohol = (Sodium ion (1+) • 2Methyl Alcohol)

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

Quantity Value Units Method Reference Comment
ΔrH°85.8 ± 5.9kJ/molCIDCAmicangelo and Armentrout, 2001Anchor NH3=24.41; RCD
ΔrH°89.5 ± 6.7kJ/molCIDCAmicangelo and Armentrout, 2001Anchor NH3=24.41; RCD
ΔrH°85.8 ± 6.7kJ/molCIDCAmicangelo and Armentrout, 2001Anchor NH3=24.41; RCD
ΔrH°84.5 ± 0.8kJ/molHPMSGuo, Conklin, et al., 1989gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°90.8J/mol*KHPMSGuo, Conklin, et al., 1989gas phase; M

H4ClO2- + Methyl Alcohol + 2Water = CH8ClO3-

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

Quantity Value Units Method Reference Comment
ΔrH°43.51 ± 0.84kJ/molTDAsEvans and Keesee, 1991gas phase; B
ΔrH°47.7 ± 1.3kJ/molTDAsEvans and Keesee, 1991gas phase; For solvation by MeOH of core ion; B
Quantity Value Units Method Reference Comment
ΔrG°24.3kJ/molTDAsEvans and Keesee, 1991gas phase; B
ΔrG°25.1kJ/molTDAsEvans and Keesee, 1991gas phase; For solvation by MeOH of core ion; B

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

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
ΔrH°72.0kJ/molPHPMSHiraoka, Grimsrud, et al., 1974gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M
Quantity Value Units Method Reference Comment
ΔrS°120.J/mol*KPHPMSHiraoka, Grimsrud, et al., 1974gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M

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

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
ΔrH°57.3kJ/molPHPMSHiraoka, Grimsrud, et al., 1974gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M
Quantity Value Units Method Reference Comment
ΔrS°129.J/mol*KPHPMSHiraoka, Grimsrud, et al., 1974gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°58.6kJ/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrH°67.4kJ/molPHPMSGrimsrud and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°100.J/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrS°121.J/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase; M

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°47.3kJ/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrH°56.5kJ/molPHPMSGrimsrud and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°93.3J/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrS°120.J/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase; M

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°42.7kJ/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrH°52.3kJ/molPHPMSGrimsrud and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°98.3J/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrS°130.J/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase; M

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

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
ΔrH°91.6kJ/molPHPMSHiraoka, Grimsrud, et al., 1974gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M
Quantity Value Units Method Reference Comment
ΔrS°105.J/mol*KPHPMSHiraoka, Grimsrud, et al., 1974gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°39.kJ/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrH°49.8kJ/molPHPMSGrimsrud and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°98.3J/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrS°138.J/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase; M

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°38.kJ/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrH°50.2kJ/molPHPMSGrimsrud and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°108.J/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrS°149.J/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase; M

(Fluorine anion • 11Methyl Alcohol) + Methyl Alcohol = (Fluorine anion • 12Methyl Alcohol)

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

Quantity Value Units Method Reference Comment
ΔrH°36. ± 4.2kJ/molTDAsHiraoka and Yamabe, 1991gas phase; Entropy estimated.; B,M
Quantity Value Units Method Reference Comment
ΔrS°100.J/mol*KN/AHiraoka and Yamabe, 1991gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrG°4.6 ± 8.4kJ/molTDAsHiraoka and Yamabe, 1991gas phase; Entropy estimated.; B

Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

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

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References

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

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Wiberg and Squires, 1979, 2
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Chowdhury, Grimsrud, et al., 1987
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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

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