Acetonitrile, 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

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Individual Reactions

C2H4N+ + Acetonitrile = (C2H4N+ • Acetonitrile)

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

Quantity Value Units Method Reference Comment
Δr130. ± 9.6kJ/molCIDHonma, Sunderlin, et al., 1993gas phase; guided ion beam CID
Δr121.kJ/molPHPMSAllison, Cramer, et al., 1991gas phase
Δr125.kJ/molPHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n
Δr125.kJ/molPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase
Δr126.kJ/molPHPMSMeot-Ner (Mautner), 1978gas phase
Quantity Value Units Method Reference Comment
Δr114.J/mol*KPHPMSAllison, Cramer, et al., 1991gas phase
Δr104.J/mol*KPHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n
Δr103.J/mol*KPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase
Δr120.J/mol*KPHPMSMeot-Ner (Mautner), 1978gas phase

(C2H4N+ • Water • 2Acetonitrile) + Water = (C2H4N+ • 2Water • 2Acetonitrile)

By formula: (C2H4N+ • H2O • 2C2H3N) + H2O = (C2H4N+ • 2H2O • 2C2H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr41.kJ/molPHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n, Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
Δr92.J/mol*KN/ADeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n, Entropy change calculated or estimated

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
12.316.PHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n, Entropy change calculated or estimated

C2H4N+ + Water = (C2H4N+ • Water)

By formula: C2H4N+ + H2O = (C2H4N+ • H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr92.5 ± 5.9kJ/molCIDHonma, Sunderlin, et al., 1993gas phase; guided ion beam CID
Δr95.4kJ/molPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase
Δr104.kJ/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
Δr103.J/mol*KPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase
Δr119.J/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

(C2H4N+ • Acetonitrile • 4Water) + Acetonitrile = (C2H4N+ • 2Acetonitrile • 4Water)

By formula: (C2H4N+ • C2H3N • 4H2O) + C2H3N = (C2H4N+ • 2C2H3N • 4H2O)

Quantity Value Units Method Reference Comment
Δr60.2kJ/molPHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n, Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
Δr92.J/mol*KN/ADeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n, Entropy change calculated or estimated

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
31.318.PHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n, Entropy change calculated or estimated

(C2H4N+ • Water) + Water = (C2H4N+ • 2Water)

By formula: (C2H4N+ • H2O) + H2O = (C2H4N+ • 2H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr62.8 ± 7.1kJ/molCIDHonma, Sunderlin, et al., 1993gas phase; guided ion beam CID
Δr73.2kJ/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
Δr105.J/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

(C2H4N+ • 2Water • Acetonitrile) + Water = (C2H4N+ • 3Water • Acetonitrile)

By formula: (C2H4N+ • 2H2O • C2H3N) + H2O = (C2H4N+ • 3H2O • C2H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr43.1kJ/molPHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n
Quantity Value Units Method Reference Comment
Δr93.3J/mol*KPHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n

(C2H4N+ • Water • Acetonitrile) + Water = (C2H4N+ • 2Water • Acetonitrile)

By formula: (C2H4N+ • H2O • C2H3N) + H2O = (C2H4N+ • 2H2O • C2H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr64.0kJ/molPHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n
Quantity Value Units Method Reference Comment
Δr105.J/mol*KPHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n

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

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

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

Quantity Value Units Method Reference Comment
Δr57.3kJ/molPHPMSEl-Shall, Olafsdottir, et al., 1991gas phase
Quantity Value Units Method Reference Comment
Δr101.J/mol*KPHPMSEl-Shall, Olafsdottir, et al., 1991gas phase

(C2H4N+ • Acetonitrile) + Water = (C2H4N+ • Water • Acetonitrile)

By formula: (C2H4N+ • C2H3N) + H2O = (C2H4N+ • H2O • C2H3N)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr66.5kJ/molPHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n
Quantity Value Units Method Reference Comment
Δr103.J/mol*KPHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n

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

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

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

Quantity Value Units Method Reference Comment
Δr58.2kJ/molPHPMSEl-Shall, Olafsdottir, et al., 1991gas phase
Quantity Value Units Method Reference Comment
Δr102.J/mol*KPHPMSEl-Shall, Olafsdottir, et al., 1991gas phase

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

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

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

Quantity Value Units Method Reference Comment
Δr87.4kJ/molPHPMSEl-Shall, Olafsdottir, et al., 1991gas phase
Quantity Value Units Method Reference Comment
Δr109.J/mol*KPHPMSEl-Shall, Olafsdottir, et al., 1991gas phase

(C2H4N+ • 2Water) + Water = (C2H4N+ • 3Water)

By formula: (C2H4N+ • 2H2O) + H2O = (C2H4N+ • 3H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr65.3kJ/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
Δr104.J/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

(C2H4N+ • 3Water) + Water = (C2H4N+ • 4Water)

By formula: (C2H4N+ • 3H2O) + H2O = (C2H4N+ • 4H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr46.9kJ/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
Δr91.2J/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

(C2H4N+ • 4Water) + Water = (C2H4N+ • 5Water)

By formula: (C2H4N+ • 4H2O) + H2O = (C2H4N+ • 5H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr43.5kJ/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
Δr97.9J/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

(C2H4N+ • 5Water) + Water = (C2H4N+ • 6Water)

By formula: (C2H4N+ • 5H2O) + H2O = (C2H4N+ • 6H2O)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr42.3kJ/molPHPMSMeot-Ner (Mautner), 1984gas phase
Quantity Value Units Method Reference Comment
Δr107.J/mol*KPHPMSMeot-Ner (Mautner), 1984gas phase

(C2H4N+ • Acetonitrile • Water) + Acetonitrile = (C2H4N+ • 2Acetonitrile • Water)

By formula: (C2H4N+ • C2H3N • H2O) + C2H3N = (C2H4N+ • 2C2H3N • H2O)

Quantity Value Units Method Reference Comment
Δr86.2kJ/molPHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n
Quantity Value Units Method Reference Comment
Δr114.J/mol*KPHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n

(C2H4N+ • Water) + Acetonitrile = (C2H4N+ • Acetonitrile • Water)

By formula: (C2H4N+ • H2O) + C2H3N = (C2H4N+ • C2H3N • H2O)

Quantity Value Units Method Reference Comment
Δr97.9kJ/molPHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n
Quantity Value Units Method Reference Comment
Δr103.J/mol*KPHPMSDeakyne, Meot-Ner (Mautner), et al., 1986gas phase; n

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

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

Quantity Value Units Method Reference Comment
Δr65.3kJ/molPHPMSEl-Shall, Olafsdottir, et al., 1991gas phase
Quantity Value Units Method Reference Comment
Δr90.4J/mol*KPHPMSEl-Shall, Olafsdottir, et al., 1991gas phase

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

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

Quantity Value Units Method Reference Comment
Δr29.kJ/molPHPMSEl-Shall, Olafsdottir, et al., 1991gas phase
Quantity Value Units Method Reference Comment
Δr51.9J/mol*KPHPMSEl-Shall, Olafsdottir, et al., 1991gas phase

C2H4N+ + Hydrogen cyanide = (C2H4N+ • Hydrogen cyanide)

By formula: C2H4N+ + CHN = (C2H4N+ • CHN)

Quantity Value Units Method Reference Comment
Δr92.5kJ/molPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase; CD3CNH+
Quantity Value Units Method Reference Comment
Δr96.7J/mol*KPHPMSSpeller and Meot-Ner (Mautner), 1985gas phase; CD3CNH+

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

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

Quantity Value Units Method Reference Comment
Δr94.6kJ/molPHPMSEl-Shall, Olafsdottir, et al., 1991gas phase
Quantity Value Units Method Reference Comment
Δr103.J/mol*KPHPMSEl-Shall, Olafsdottir, et al., 1991gas phase

(C2H4N+ • Acetonitrile) + Acetonitrile = (C2H4N+ • 2Acetonitrile)

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

Quantity Value Units Method Reference Comment
Δr39.kJ/molPHPMSMeot-Ner (Mautner), 1978gas phase
Quantity Value Units Method Reference Comment
Δr79.J/mol*KPHPMSMeot-Ner (Mautner), 1978gas phase

References

Go To: Top, Reaction thermochemistry data, Notes

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

Honma, Sunderlin, et al., 1993
Honma, K.; Sunderlin, L.S.; Armentrout, P.B., Guided-Ion Beam Studies of the Reactions of Protonated Water Clusters, H(H2O)n+ (n = 1-4), with Acetonitrile, J. Chem. Phys., 1993, 99, 3, 1623, https://doi.org/10.1063/1.465331 . [all data]

Allison, Cramer, et al., 1991
Allison, C.E.; Cramer, J.A.; Hop, C.E.C.A.; Szulejko, J.E.; McMahon, T.B., Strong Hydrogen Bonding in Gas - Phase Ions. A High - Pressure Mass Spectrometric Study of the Proton Affinity, Proton Transfer Kinetics, and Hydrogen - Bonding Capability of Iron Pentacarbonyl, J. Am. Chem. Soc., 1991, 113, 12, 4469, https://doi.org/10.1021/ja00012a014 . [all data]

Deakyne, Meot-Ner (Mautner), et al., 1986
Deakyne, C.A.; Meot-Ner (Mautner), M.; Campbell, C.L.; Hughes, M.G.; Murphy, S.P., Multicomponent Cluster Ions. 1. The Acetonitrile - Water System, J. Chem. Phys., 1986, 90, 4648. [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]

Meot-Ner (Mautner), 1978
Meot-Ner (Mautner), M., Solvation of the Proton by HCN and CH3CN. Condensation of HCN with Ions in the Gas Phase., J. Am. Chem. Soc., 1978, 100, 15, 4694, https://doi.org/10.1021/ja00483a012 . [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]

El-Shall, Olafsdottir, et al., 1991
El-Shall, M.S.; Olafsdottir, S.; Meot-ner (Mautner), M.; Sieck, L.W., Energy effects on cluster ion distributions: Beam expansion and thermochemical studies on mixed clusters of methanol and acetonitrile, Chem. Phys. Lett., 1991, 185, 3-4, 193, https://doi.org/10.1016/S0009-2614(91)85046-Y . [all data]


Notes

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