Methyl alcohol, protonated

Reaction thermochemistry data

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

Data compiled by: Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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.

Individual Reactions

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
ΔrH°32.3kcal/molPHPMSSzulejko and McMahon, 1992gas phase
ΔrH°32.1kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase
ΔrH°33.1kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase
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
Quantity Value Units Method Reference Comment
ΔrS°29.0cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase
ΔrS°29.2cal/mol*KPHPMSSzulejko and McMahon, 1992gas phase
ΔrS°26.6cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase
ΔrS°30.5cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase
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
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

CH5O+ + Formic acid = (CH5O+ • Formic acid)

By formula: CH5O+ + CH2O2 = (CH5O+ • CH2O2)

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

Quantity Value Units Method Reference Comment
ΔrH°32.0kcal/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
Quantity Value Units Method Reference Comment
ΔrS°27.7cal/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
Quantity Value Units Method Reference Comment
ΔrG°23.8kcal/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

(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
ΔrH°21.0kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase
ΔrH°21.3kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°27.0cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase
ΔrS°25.8cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase
ΔrS°28.2cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase

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

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

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

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

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

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

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

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

(CH5O+ • 6Water) + Water = (CH5O+ • 7Water)

By formula: (CH5O+ • 6H2O) + H2O = (CH5O+ • 7H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°8.9kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
ΔrS°22.cal/mol*KN/AMeot-Ner (Mautner), 1984gas phase; Entropy change calculated or estimated

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.0269.PHPMSMeot-Ner (Mautner), 1984gas phase; Entropy change calculated or estimated

(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+
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+

(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+
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+

(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
ΔrH°16.1kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°24.0cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase
ΔrS°28.9cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase

(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
ΔrH°13.5kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°22.3cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase
ΔrS°28.7cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase

(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
ΔrH°12.5kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°23.5cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase
ΔrS°31.1cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase

(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+
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+

(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
ΔrH°11.9kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°23.5cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase
ΔrS°32.9cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase

(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
ΔrH°12.0kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°25.7cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase
ΔrS°35.7cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°14.1kcal/molPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrH°14.8kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°25.1cal/mol*KPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrS°25.9cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

(CH5O+ • 3Water) + Water = (CH5O+ • 4Water)

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°11.6kcal/molPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrH°11.6kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°23.0cal/mol*KPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrS°22.1cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

(CH5O+ • Water) + Water = (CH5O+ • 2Water)

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°19.8kcal/molPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrH°21.0kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°27.3cal/mol*KPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrS°28.9cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°9.8kcal/molPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrH°9.1kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°20.7cal/mol*KPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrS°18.5cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

(CH5O+ • 5Water) + Water = (CH5O+ • 6Water)

By formula: (CH5O+ • 5H2O) + H2O = (CH5O+ • 6H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°8.9kcal/molPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrH°9.4kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°20.2cal/mol*KPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrS°22.2cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°35.0kcal/molPHPMSHiraoka, Grimsrud, et al., 1974gas phase; n, note proton affinities, core ion may be ((CH3)2OH+
Quantity Value Units Method Reference Comment
ΔrS°24.7cal/mol*KPHPMSHiraoka, Grimsrud, et al., 1974gas phase; n, note proton affinities, core ion may be ((CH3)2OH+

CH5O+ + Water = (CH5O+ • Water)

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°27.6kcal/molPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrH°25.kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°29.4cal/mol*KPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrS°23.cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°8.6kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase
Quantity Value Units Method Reference Comment
ΔrS°26.cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.8184.PHPMSMeot-Ner (Mautner), 1992gas phase

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°8.5kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase
Quantity Value Units Method Reference Comment
ΔrS°26.cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.7184.PHPMSMeot-Ner (Mautner), 1992gas phase

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°8.6kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase
Quantity Value Units Method Reference Comment
ΔrS°26.cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.8184.PHPMSMeot-Ner (Mautner), 1992gas phase

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°8.7kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase
Quantity Value Units Method Reference Comment
ΔrS°26.cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.5200.PHPMSMeot-Ner (Mautner), 1992gas phase

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°9.1kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase
Quantity Value Units Method Reference Comment
ΔrS°26.cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.9200.PHPMSMeot-Ner (Mautner), 1992gas phase

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°16.4kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°26.5cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°9.2kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°20.2cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°11.8kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°25.5cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°11.2kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°23.0cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°18.0kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°26.3cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°10.4kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°23.5cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°8.6kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°19.0cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°12.1kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°27.0cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°10.0kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°23.8cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°18.4kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°25.7cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°9.4kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase
Quantity Value Units Method Reference Comment
ΔrS°26.9cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase

CH5O+ + Hydrogen cyanide = (CH5O+ • Hydrogen cyanide)

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

Quantity Value Units Method Reference Comment
ΔrH°25.7kcal/molPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase
Quantity Value Units Method Reference Comment
ΔrS°22.1cal/mol*KPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase

Ion clustering data

Go To: Top, 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: Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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

Clustering reactions

CH5O+ + Hydrogen cyanide = (CH5O+ • Hydrogen cyanide)

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

Quantity Value Units Method Reference Comment
ΔrH°25.7kcal/molPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase
Quantity Value Units Method Reference Comment
ΔrS°22.1cal/mol*KPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase

CH5O+ + Formic acid = (CH5O+ • Formic acid)

By formula: CH5O+ + CH2O2 = (CH5O+ • CH2O2)

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

Quantity Value Units Method Reference Comment
ΔrH°32.0kcal/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
Quantity Value Units Method Reference Comment
ΔrS°27.7cal/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
Quantity Value Units Method Reference Comment
ΔrG°23.8kcal/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

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
ΔrH°32.3kcal/molPHPMSSzulejko and McMahon, 1992gas phase
ΔrH°32.1kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase
ΔrH°33.1kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase
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
Quantity Value Units Method Reference Comment
ΔrS°29.0cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase
ΔrS°29.2cal/mol*KPHPMSSzulejko and McMahon, 1992gas phase
ΔrS°26.6cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase
ΔrS°30.5cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase
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
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

(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
ΔrH°21.0kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase
ΔrH°21.3kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°27.0cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase
ΔrS°25.8cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase
ΔrS°28.2cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase

(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
ΔrH°16.1kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°24.0cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase
ΔrS°28.9cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase

(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
ΔrH°13.5kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°22.3cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase
ΔrS°28.7cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase

(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
ΔrH°12.5kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°23.5cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase
ΔrS°31.1cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase

(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
ΔrH°11.9kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°23.5cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase
ΔrS°32.9cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase

(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
ΔrH°12.0kcal/molPHPMSGrimsrud and Kebarle, 1973gas phase
Quantity Value Units Method Reference Comment
ΔrS°25.7cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase
ΔrS°35.7cal/mol*KPHPMSGrimsrud and Kebarle, 1973gas phase

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°9.4kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase
Quantity Value Units Method Reference Comment
ΔrS°26.9cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°9.1kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase
Quantity Value Units Method Reference Comment
ΔrS°26.cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.9200.PHPMSMeot-Ner (Mautner), 1992gas phase

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°8.7kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase
Quantity Value Units Method Reference Comment
ΔrS°26.cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.5200.PHPMSMeot-Ner (Mautner), 1992gas phase

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°8.6kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase
Quantity Value Units Method Reference Comment
ΔrS°26.cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.8184.PHPMSMeot-Ner (Mautner), 1992gas phase

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°8.5kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase
Quantity Value Units Method Reference Comment
ΔrS°26.cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.7184.PHPMSMeot-Ner (Mautner), 1992gas phase

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°8.6kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase
Quantity Value Units Method Reference Comment
ΔrS°26.cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.8184.PHPMSMeot-Ner (Mautner), 1992gas phase

(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+
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+

(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+
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+

(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+
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+

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°18.4kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°25.7cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°12.1kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°27.0cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°10.0kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°23.8cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°16.4kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°26.5cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°35.0kcal/molPHPMSHiraoka, Grimsrud, et al., 1974gas phase; n, note proton affinities, core ion may be ((CH3)2OH+
Quantity Value Units Method Reference Comment
ΔrS°24.7cal/mol*KPHPMSHiraoka, Grimsrud, et al., 1974gas phase; n, note proton affinities, core ion may be ((CH3)2OH+

CH5O+ + Water = (CH5O+ • Water)

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°27.6kcal/molPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrH°25.kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°29.4cal/mol*KPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrS°23.cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

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

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

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

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

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

Quantity Value Units Method Reference Comment
ΔrH°18.0kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°26.3cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°11.8kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°25.5cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°8.6kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°19.0cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°11.2kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°23.0cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°9.2kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°20.2cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°10.4kcal/molPHPMSMeot-Ner(Mautner), 1986gas phase; n
Quantity Value Units Method Reference Comment
ΔrS°23.5cal/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n

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

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

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

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

(CH5O+ • Water) + Water = (CH5O+ • 2Water)

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°19.8kcal/molPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrH°21.0kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°27.3cal/mol*KPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrS°28.9cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°14.1kcal/molPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrH°14.8kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°25.1cal/mol*KPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrS°25.9cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

(CH5O+ • 3Water) + Water = (CH5O+ • 4Water)

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°11.6kcal/molPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrH°11.6kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°23.0cal/mol*KPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrS°22.1cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

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

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

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°9.8kcal/molPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrH°9.1kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°20.7cal/mol*KPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrS°18.5cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

(CH5O+ • 5Water) + Water = (CH5O+ • 6Water)

By formula: (CH5O+ • 5H2O) + H2O = (CH5O+ • 6H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°8.9kcal/molPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrH°9.4kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
ΔrS°20.2cal/mol*KPHPMSHiraoka, Takimoto, et al., 1986gas phase
ΔrS°22.2cal/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

(CH5O+ • 6Water) + Water = (CH5O+ • 7Water)

By formula: (CH5O+ • 6H2O) + H2O = (CH5O+ • 7H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
ΔrH°8.9kcal/molPHPMSMeot-Ner (Mautner), 1984gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
ΔrS°22.cal/mol*KN/AMeot-Ner (Mautner), 1984gas phase; Entropy change calculated or estimated

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.0269.PHPMSMeot-Ner (Mautner), 1984gas phase; Entropy change calculated or estimated

References

Go To: Top, Reaction thermochemistry data, Ion clustering data, Notes

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

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]

Meot-Ner (Mautner), 1984
Meot-Ner (Mautner), M., The Ionic Hydrogen Bond and Ion Solvation. 2. Hydration of Onium Ions by 1 - 7 H2O Molecules. Relations Between Monomolecular, Specific and Bulk Hydration, J. Am. Chem. Soc., 1984, 106, 5, 1265, https://doi.org/10.1021/ja00317a016 . [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]

Hiraoka, Takimoto, et al., 1986
Hiraoka, K.; Takimoto, H.; Morise, K., Gas-Phase Hydration Reactions of Protonated Alcohols. Energetics and Bulk Hydration of Cluster Ions, J. Am. Chem. Soc., 1986, 108, 19, 5683, https://doi.org/10.1021/ja00279a004 . [all data]

Speller and Meot-Ner (Mautner), 1985
Speller, C.V.; Meot-Ner (Mautner), M., The Ionic Hydrogen Bond and Ion Solvation. 3. Bonds Involving Cyanides. Correlations with Proton Affinites, J. Phys. Chem., 1985, 81, 24, 5217, https://doi.org/10.1021/j100270a020 . [all data]

Notes

Go To: Top, Reaction thermochemistry data, Ion clustering data, References