Methyl Alcohol

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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry 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 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-49. ± 3.kcal/molAVGN/AAverage of 9 values; Individual data points
Quantity Value Units Method Reference Comment
ΔcH°gas-182.52 ± 0.048kcal/molCmRossini, 1932Flame Calorimetry; Corresponding ΔfHºgas = -48.157 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
8.12650.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
8.831100.
9.235150.
9.491200.
10.18273.15
10.53 ± 0.007298.15
10.56300.
12.34400.
14.27500.
16.06600.
17.65700.
19.06800.
20.30900.
21.401000.
22.361100.
23.211200.
23.9581300.
24.6131400.
25.1911500.
26.341750.
27.202000.
27.842250.
28.352500.
28.72750.
28.93000.

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
10.13 ± 0.30279.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
11.46 ± 0.30345.6
11.19 ± 0.28347.35
11.01 ± 0.30349.65
11.37 ± 0.28356.55
11.17 ± 0.30358.15
11.52 ± 0.30358.85
11.67 ± 0.30359.85
12.02 ± 0.30368.15
11.71 ± 0.28373.35
12.26 ± 0.30382.15
12.22 ± 0.28398.95
12.51 ± 0.30401.15
12.27 ± 0.28401.35
12.43 ± 0.10403.2
12.72 ± 0.30420.15
12.88 ± 0.28431.45
13.09 ± 0.28442.15
13.36 ± 0.30442.65
13.39 ± 0.28457.35
13.67 ± 0.10464.0
13.80 ± 0.28477.75
13.95 ± 0.28485.05
14.23 ± 0.28498.95
14.44 ± 0.30521.2
14.68 ± 0.28521.35
15.37 ± 0.28555.95
15.88 ± 0.28581.35
15.96 ± 0.28585.35

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
ΔfH°liquid-56.97kcal/molCcrBaroody and Carpenter, 1972ALS
ΔfH°liquid-57.24 ± 0.04kcal/molCcbChao and Rossini, 1965see Rossini, 1934; ALS
ΔfH°liquid-57.10 ± 0.86kcal/molCcbGreen, 1960Reanalyzed by Cox and Pilcher, 1970, Original value = -57.01 ± 0.05 kcal/mol; ALS
ΔfH°liquid-59.89kcal/molCcbParks, 1925ALS
ΔfH°liquid-60.1 ± 1.2kcal/molCcbRichards and Davis, 1920DRB
Quantity Value Units Method Reference Comment
ΔcH°liquid-173.45 ± 0.03kcal/molCcbChao and Rossini, 1965see Rossini, 1934; Corresponding ΔfHºliquid = -57.23 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
ΔcH°liquid-173.64 ± 0.05kcal/molCcbGreen, 1960Corresponding ΔfHºliquid = -57.04 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
ΔcH°liquid-173.60 ± 0.048kcal/molCcbRossini, 1931Corresponding ΔfHºliquid = -57.082 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
ΔcH°liquid-170.90kcal/molCcbParks, 1925Corresponding ΔfHºliquid = -59.78 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
ΔcH°liquid-170.61kcal/molCcbRichards and Davis, 1920At 291 K; Corresponding ΔfHºliquid = -60.072 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
S°liquid30.399cal/mol*KN/ACarlson and Westrum, 1971DH
S°liquid30.31cal/mol*KN/AKelley, 1929DH
S°liquid31.00cal/mol*KN/AParks, Kelley, et al., 1929Extrapolation below 90 K, 34.3 J/mol*K. Revision of previous data.; DH
S°liquid32.60cal/mol*KN/AParks, 1925Extrapolation below 90 K, 40.75 J/mol*K.; DH
Quantity Value Units Method Reference Comment
S°solid,1 bar0.2670cal/mol*KN/AAhlberg, Blanchard, et al., 1937DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
19.0298.15Filatov and Afanas'ev, 1992DH
19.39298.15Khasanshin and Zykova, 1989T = 175 to 338 K. Unsmoothed experimental datum.; DH
19.18298.15Andreoli-Ball, Patterson, et al., 1988DH
19.20298.15Okano, Ogawa, et al., 1988DH
19.4298.15Lankford and Criss, 1987DH
19.44298.Korolev, Kukharenko, et al., 1986DH
19.19298.15Ogawa and Murakami, 1986DH
19.49298.15Tanaka, Toyama, et al., 1986DH
19.17298.15Costas and Patterson, 1985T = 298.15, 313.15 K.; DH
19.47298.15Zegers and Somsen, 1984DH
18.86288.15Benson and D'Arcy, 1982DH
19.58298.15Villamanan, Casanova, et al., 1982DH
19.3293.15Atalla, El-Sharkawy, et al., 1981DH
19.39298.15Carlson and Westrum, 1971T = 5 to 332 K.; DH
20.0298.Deshpande and Bhatagadde, 1971T = 298 to 318 K.; DH
20.5313.2Paz Andrade, Paz, et al., 1970DH
20.5298.2Katayama, 1962T = 10 to 60°C.; DH
19.3311.Swietoslawski and Zielenkiewicz, 1960Mean value 21 to 56°C.; DH
20.6323.Hough, Mason, et al., 1950T = 323 to 353 K.; DH
18.11270.Staveley and Gupta, 1949T = 90 to 270 K.; DH
20.7300.8Phillip, 1939DH
19.97313.15Fiock, Ginnings, et al., 1931T = 40 to 110°C.; DH
19.1292.0Kelley, 1929T = 16 to 293 K. Value is unsmoothed experimental datum.; DH
18.7270.Mitsukuri and Hara, 1929T = 190 to 270 K.; DH
19.1290.1Parks, 1925T = 89 to 290 K. Value is unsmoothed experimental datum.; DH
19.9298.von Reis, 1881T = 288 to 335 K.; DH

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
16.35120.Sugisaki, Suga, et al., 1968glass phase; T = 20 to 120 K.; DH
1.2920.5Ahlberg, Blanchard, et al., 1937T = 5 to 28 K.; DH
25.1173.Maass and Walbauer, 1925T = 93 to 173 K.; DH

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed phase 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 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°17. ± 3.kcal/molAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrS°22.6cal/mol*KHPMSEvans and Keesee, 1991gas phase; M
ΔrS°24.1cal/mol*KPHPMSHiraoka and Mizuse, 1987gas phase; M
ΔrS°22.0cal/mol*KPHPMSSieck, 1985gas phase; M
ΔrS°22.9cal/mol*KN/ALarson and McMahon, 1984gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
ΔrS°14.8cal/mol*KPHPMSYamdagni, Payzant, et al., 1973gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrG°10.1 ± 0.8kcal/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°382. ± 2.kcal/molAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrG°376.02 ± 0.62kcal/molH-TSNee, Osterwalder, et al., 2006gas phase; B
ΔrG°376.04 ± 0.55kcal/molH-TSOsborn, Leahy, et al., 1998gas phase; B
ΔrG°374.0 ± 2.0kcal/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°374.6 ± 2.1kcal/molH-TSHaas and Harrison, 1993gas phase; Both metastable and 50 eV collision energy.; B
ΔrG°375.10 ± 0.60kcal/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°32.6kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrH°32.3kcal/molPHPMSSzulejko and McMahon, 1992gas phase; M
ΔrH°32.1kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; M
ΔrH°33.1kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase; M
ΔrH°33.7kcal/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°29.0cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrS°29.2cal/mol*KPHPMSSzulejko and McMahon, 1992gas phase; M
ΔrS°26.6cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; M
ΔrS°30.5cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase; M
ΔrS°28.5cal/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°25.2kcal/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°29.3 ± 1.0kcal/molTDAsPaul and Kebarle, 1990gas phase; B,M
ΔrH°28.80 ± 0.30kcal/molTDAsMeot-ner and Sieck, 1986gas phase; B,M
ΔrH°29.4 ± 2.5kcal/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°19.0 ± 2.0kcal/molN/AMoylan, Dodd, et al., 1985gas phase; B
Quantity Value Units Method Reference Comment
ΔrS°31.8cal/mol*KPHPMSPaul and Kebarle, 1990gas phase; M
ΔrS°26.7cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
ΔrG°20.30kcal/molIMREMustanir, Matsuoka, et al., 2006gas phase; B
ΔrG°19.8 ± 1.0kcal/molTDAsPaul and Kebarle, 1990gas phase; B
ΔrG°20.80 ± 0.50kcal/molTDAsMeot-ner and Sieck, 1986gas phase; B
ΔrG°20.3 ± 1.6kcal/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° (kcal/mol) T (K) Method Reference Comment
19.1296.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°25.5 ± 1.0kcal/molTDEqMeot-Ner and Sieck, 1986gas phase; B,M
ΔrH°23.4 ± 2.2kcal/molCIDTDeTuri and Ervin, 1999gas phase; B
ΔrH°26.0 ± 2.5kcal/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°27.9cal/mol*KN/AMeot-Ner and Sieck, 1986gas phase; Entropy change calculated or estimated; M
ΔrS°29.3cal/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°10.20kcal/molIMREMustanir, Matsuoka, et al., 2006gas phase; B
ΔrG°17.1 ± 1.6kcal/molTDEqMeot-Ner and Sieck, 1986gas phase; B
ΔrG°17.3 ± 1.6kcal/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°27.3 ± 2.9kcal/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°25.6 ± 1.9kcal/molCIDTDeTuri and Ervin, 1999gas phase; B
Quantity Value Units Method Reference Comment
ΔrS°29.3cal/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°18.6 ± 2.0kcal/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° (kcal/mol) T (K) Method Reference Comment
13.4296.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°14.10 ± 0.40kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°13.70 ± 0.20kcal/molTDAsEvans and Keesee, 1991gas phase; B,M
ΔrH°14.1 ± 1.0kcal/molTDAsHiraoka and Mizuse, 1987gas phase; B,M
ΔrH°13.00 ± 0.70kcal/molTDAsYamdagni, Payzant, et al., 1973gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°24.2cal/mol*KPHPMSHiraoka and Mizuse, 1987gas phase; M
ΔrS°22.0cal/mol*KHPMSEvans and Keesee, 1991gas phase; M
ΔrS°19.4cal/mol*KPHPMSYamdagni, Payzant, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°7.30kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°7.10kcal/molTDAsEvans and Keesee, 1991gas phase; B
ΔrG°6.8 ± 1.0kcal/molTDAsHiraoka and Mizuse, 1987gas phase; B
ΔrG°7.20 ± 0.40kcal/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°11.50 ± 0.20kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°10.80 ± 0.30kcal/molTDAsEvans and Keesee, 1991gas phase; B,M
ΔrH°11.8 ± 1.0kcal/molTDAsHiraoka and Mizuse, 1987gas phase; B,M
ΔrH°12.30 ± 0.60kcal/molN/AYamdagni, Payzant, et al., 1973gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°22.9cal/mol*KPHPMSHiraoka and Mizuse, 1987gas phase; M
ΔrS°22.7cal/mol*KHPMSEvans and Keesee, 1991gas phase; M
ΔrS°23.6cal/mol*KPHPMSYamdagni, Payzant, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°5.06kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°4.00kcal/molTDAsEvans and Keesee, 1991gas phase; B
ΔrG°4.9 ± 1.0kcal/molTDAsHiraoka and Mizuse, 1987gas phase; B
ΔrG°5.20 ± 0.30kcal/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°21.5 ± 2.0kcal/molIMREChabinyc and Brauman, 1999gas phase; B
ΔrH°21.4 ± 2.9kcal/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°29.3cal/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°11.0 ± 2.0kcal/molIMREChabinyc and Brauman, 1999gas phase; B
ΔrG°12.7 ± 2.0kcal/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°15.70 ± 0.80kcal/molTDAsLarson, Szulejko, et al., 1988gas phase; B,M
ΔrH°16.6 ± 1.0kcal/molTDAsMeot-ner, 1988gas phase; B
ΔrH°16.5 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°23.cal/mol*KPHPMSLarson, Szulejko, et al., 1988gas phase; M
ΔrS°24.3cal/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°8.80 ± 0.20kcal/molTDAsLarson, Szulejko, et al., 1988gas phase; B
ΔrG°10.4 ± 1.0kcal/molTDAsMeot-ner, 1988gas phase; B
ΔrG°9.2 ± 2.3kcal/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°36.8 ± 1.9kcal/molCIDTRodgers and Armentrout, 2000RCD
ΔrH°38.1kcal/molICRWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H20, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
ΔrH°38.kcal/molICRStaley and Beauchamp, 1975gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 extrapolated; M
Quantity Value Units Method Reference Comment
ΔrS°26.cal/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°30.3kcal/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°11.90 ± 0.20kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°11.3 ± 1.0kcal/molTDAsCaldwell and Kebarle, 1984gas phase; B,M
ΔrH°11.2kcal/molPHPMSHiraoka and Yamabe, 1991gas phase; M
ΔrH°11.kcal/molPHPMSCaldwell, Masucci, et al., 1989gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°17.1cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
ΔrS°17.8cal/mol*KPHPMSCaldwell and Kebarle, 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°5.76kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°6.0 ± 1.0kcal/molTDAsCaldwell and Kebarle, 1984gas phase; B
ΔrG°5.7 ± 2.0kcal/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°30.3kcal/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°26.9cal/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°22.3kcal/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°29.6kcal/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°26.6cal/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°21.7kcal/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°26.9 ± 2.9kcal/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°29.3cal/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°18.2 ± 2.0kcal/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°29.6 ± 2.0kcal/molIMRELarson and McMahon, 1983gas phase; B,M
ΔrH°29.4 ± 2.2kcal/molCIDTDeTuri and Ervin, 1999gas phase; B
ΔrH°23.3 ± 2.0kcal/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°25.0cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
ΔrS°22.6cal/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°22.8 ± 2.0kcal/molIMRELarson and McMahon, 1983gas phase; B,M
ΔrG°15.8 ± 2.0kcal/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°10.5 ± 1.0kcal/molTDAsHiraoka and Mizuse, 1987gas phase; B,M
ΔrH°10.50kcal/molTDAsEvans and Keesee, 1991gas phase; B
ΔrH°11.20 ± 0.60kcal/molTDAsYamdagni, Payzant, et al., 1973gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°22.9cal/mol*KPHPMSHiraoka and Mizuse, 1987gas phase; M
ΔrS°26.4cal/mol*KPHPMSYamdagni, Payzant, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°3.6 ± 1.0kcal/molTDAsHiraoka and Mizuse, 1987gas phase; B
ΔrG°3.70kcal/molTDAsEvans and Keesee, 1991gas phase; B
ΔrG°3.30 ± 0.20kcal/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°14.50 ± 0.10kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°13.9 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°17.6cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°8.00 ± 0.10kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°8.7 ± 2.0kcal/molTDAsHiraoka and Yamabe, 1991gas phase; B
ΔrG°8.4 ± 2.0kcal/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°39.2kcal/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°29.7cal/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° (kcal/mol) T (K) Method Reference Comment
25.3468.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°23.2 ± 1.3kcal/molCIDCAmicangelo and Armentrout, 2001Anchor NH3=24.41; RCD
ΔrH°21.9 ± 1.4kcal/molCIDTArmentrout and Rodgers, 2000RCD
ΔrH°24.0 ± 0.2kcal/molHPMSHoyau, Norrman, et al., 1999RCD
ΔrH°26.6 ± 0.2kcal/molHPMSGuo, Conklin, et al., 1989gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°20500.cal/mol*KHPMSHoyau, Norrman, et al., 1999RCD
ΔrS°24.3cal/mol*KHPMSGuo, Conklin, et al., 1989gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
17.3298.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°9.2 ± 1.0kcal/molTDAsHiraoka and Mizuse, 1987gas phase; B,M
ΔrH°10.50 ± 0.50kcal/molN/AYamdagni, Payzant, et al., 1973gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°21.7cal/mol*KPHPMSHiraoka and Mizuse, 1987gas phase; M
ΔrS°25.5cal/mol*KPHPMSYamdagni, Payzant, et al., 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°2.7 ± 1.0kcal/molTDAsHiraoka and Mizuse, 1987gas phase; B
ΔrG°2.90 ± 0.10kcal/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°4.86 ± 0.01kcal/molCmWiberg, Morgan, et al., 1994liquid phase; ALS
ΔrH°4.88 ± 0.01kcal/molCmWiberg and Squires, 1979liquid phase; Heat of hydrolysis; ALS
ΔrH°4.8836 ± 0.0067kcal/molCmWiberg and Squires, 1979, 2liquid phase; solvent: Water; Hydrolysis; ALS
ΔrH°-3.95 ± 0.05kcal/molCmStern and Dorer, 1962liquid phase; Reanalyzed by Cox and Pilcher, 1970, Original value = 3.69 ± 0.05 kcal/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°21.2kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrH°21.0kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; M
ΔrH°21.3kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°27.0cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrS°25.8cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; M
ΔrS°28.2cal/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°25.7 ± 2.9kcal/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°17.0 ± 2.0kcal/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°21.9 ± 2.5kcal/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°13.2 ± 1.6kcal/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°13.8kcal/molHPMSEl-Shall, Schriver, et al., 1989gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity Value Units Method Reference Comment
ΔrS°25.cal/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°6.3kcal/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°9.1kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°22.cal/mol*KN/AMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.1272.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°9.3kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°22.cal/mol*KN/AMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.2272.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°9.4kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°22.cal/mol*KN/AMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.5269.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°24.5kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°29.cal/mol*KN/AMeot-Ner(Mautner), 1986gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
11.6452.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°15.10 ± 0.20kcal/molTDAsSieck, 1985gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°26.1cal/mol*KPHPMSSieck, 1985gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°7.30 ± 0.40kcal/molTDAsSieck, 1985gas phase; B
ΔrG°6.3 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
6.3343.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°13.4kcal/molHPMSEl-Shall, Schriver, et al., 1989gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity Value Units Method Reference Comment
ΔrS°25.cal/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°5.9kcal/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°20.30 ± 0.30kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°19.3 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°23.2cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°12.97kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°12.4 ± 2.0kcal/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°15.10 ± 0.60kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°14.5 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°21.2cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°8.06kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°8.2 ± 2.0kcal/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°9.50 ± 0.50kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°10.6 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°21.6cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°4.25kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°4.2 ± 2.0kcal/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°12.00 ± 0.20kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°12.5 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°20.7cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°5.62kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°6.3 ± 2.0kcal/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°7.70 ± 0.60kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°9.8 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°22.4cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°3.41kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°3.1 ± 2.0kcal/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°9.50 ± 0.20kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrH°11.1 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1991gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°22.6cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°4.25kcal/molTDAsBogdanov, Peschke, et al., 1999gas phase; B
ΔrG°4.4 ± 2.0kcal/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°7.3 ± 1.0kcal/molTDAsHiraoka and Mizuse, 1987gas phase; Estimated entropy; single temperature measurement; B,M
Quantity Value Units Method Reference Comment
ΔrS°20.cal/mol*KN/AHiraoka and Mizuse, 1987gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrG°1.3 ± 1.0kcal/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°20.5 ± 1.4kcal/molCIDCAmicangelo and Armentrout, 2001Anchor NH3=24.41; RCD
ΔrH°21.4 ± 1.6kcal/molCIDCAmicangelo and Armentrout, 2001Anchor NH3=24.41; RCD
ΔrH°20.5 ± 1.6kcal/molCIDCAmicangelo and Armentrout, 2001Anchor NH3=24.41; RCD
ΔrH°20.2 ± 0.2kcal/molHPMSGuo, Conklin, et al., 1989gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°21.7cal/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°10.40 ± 0.20kcal/molTDAsEvans and Keesee, 1991gas phase; B
ΔrH°11.40 ± 0.30kcal/molTDAsEvans and Keesee, 1991gas phase; For solvation by MeOH of core ion; B
Quantity Value Units Method Reference Comment
ΔrG°5.80kcal/molTDAsEvans and Keesee, 1991gas phase; B
ΔrG°6.00kcal/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°17.2kcal/molPHPMSHiraoka, Grimsrud, et al., 1974gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M
Quantity Value Units Method Reference Comment
ΔrS°28.6cal/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°13.7kcal/molPHPMSHiraoka, Grimsrud, et al., 1974gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M
Quantity Value Units Method Reference Comment
ΔrS°30.8cal/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°14.0kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrH°16.1kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°24.0cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrS°28.9cal/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°11.3kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrH°13.5kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.3cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrS°28.7cal/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°10.2kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrH°12.5kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°23.5cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrS°31.1cal/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°21.9kcal/molPHPMSHiraoka, Grimsrud, et al., 1974gas phase; n, note proton affinities, core ion may be (CH3)2OH+; M
Quantity Value Units Method Reference Comment
ΔrS°25.2cal/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°9.3kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrH°11.9kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°23.5cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrS°32.9cal/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°9.0kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrH°12.0kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°25.7cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
ΔrS°35.7cal/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°8.5 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1991gas phase; Entropy estimated.; B,M
Quantity Value Units Method Reference Comment
ΔrS°25.cal/mol*KN/AHiraoka and Yamabe, 1991gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrG°1.1 ± 2.0kcal/molTDAsHiraoka and Yamabe, 1991gas phase; Entropy estimated.; B

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, 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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Staley and Beauchamp, 1975
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Notes

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