Methane, protonated


Ion clustering data

Go To: Top, 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

CH5+ + Methane = (CH5+ • Methane)

By formula: CH5+ + CH4 = (CH5+ • CH4)

Quantity Value Units Method Reference Comment
Δr29. ± 1.kJ/molPHPMSHiraoka and Mori, 1989gas phase
Δr31.kJ/molPHPMSHiraoka and Kebarle, 1975gas phase
Δr17.kJ/molHPMSField and Beggs, 1971gas phase; Entropy change is questionable
Quantity Value Units Method Reference Comment
Δr92.5J/mol*KPHPMSHiraoka and Mori, 1989gas phase
Δr87.0J/mol*KPHPMSHiraoka and Kebarle, 1975gas phase
Δr51.9J/mol*KHPMSField and Beggs, 1971gas phase; Entropy change is questionable

(CH5+ • Methane) + Methane = (CH5+ • 2Methane)

By formula: (CH5+ • CH4) + CH4 = (CH5+ • 2CH4)

Quantity Value Units Method Reference Comment
Δr22. ± 1.kJ/molPHPMSHiraoka and Mori, 1989gas phase
Δr25.kJ/molPHPMSHiraoka and Kebarle, 1975gas phase
Δr6.3kJ/molHPMSField and Beggs, 1971gas phase; Entropy change is questionable
Quantity Value Units Method Reference Comment
Δr104.J/mol*KPHPMSHiraoka and Mori, 1989gas phase
Δr102.J/mol*KPHPMSHiraoka and Kebarle, 1975gas phase
Δr30.J/mol*KHPMSField and Beggs, 1971gas phase; Entropy change is questionable

(CH5+ • 2Methane) + Methane = (CH5+ • 3Methane)

By formula: (CH5+ • 2CH4) + CH4 = (CH5+ • 3CH4)

Quantity Value Units Method Reference Comment
Δr13.1 ± 0.8kJ/molPHPMSHiraoka and Mori, 1989gas phase
Δr17.kJ/molPHPMSHiraoka and Kebarle, 1975gas phase
Quantity Value Units Method Reference Comment
Δr93.7J/mol*KPHPMSHiraoka and Mori, 1989gas phase
Δr109.J/mol*KPHPMSHiraoka and Kebarle, 1975gas phase

(CH5+ • 3Methane) + Methane = (CH5+ • 4Methane)

By formula: (CH5+ • 3CH4) + CH4 = (CH5+ • 4CH4)

Quantity Value Units Method Reference Comment
Δr12.6 ± 0.8kJ/molPHPMSHiraoka and Mori, 1989gas phase
Δr16.kJ/molPHPMSHiraoka and Kebarle, 1975gas phase
Quantity Value Units Method Reference Comment
Δr99.2J/mol*KPHPMSHiraoka and Mori, 1989gas phase
Δr111.J/mol*KPHPMSHiraoka and Kebarle, 1975gas phase

(CH5+ • 4Methane) + Methane = (CH5+ • 5Methane)

By formula: (CH5+ • 4CH4) + CH4 = (CH5+ • 5CH4)

Quantity Value Units Method Reference Comment
Δr11.7 ± 0.8kJ/molPHPMSHiraoka and Mori, 1989gas phase
Quantity Value Units Method Reference Comment
Δr104.J/mol*KPHPMSHiraoka and Mori, 1989gas phase

(CH5+ • 5Methane) + Methane = (CH5+ • 6Methane)

By formula: (CH5+ • 5CH4) + CH4 = (CH5+ • 6CH4)

Quantity Value Units Method Reference Comment
Δr11.3 ± 0.8kJ/molPHPMSHiraoka and Mori, 1989gas phase
Quantity Value Units Method Reference Comment
Δr106.J/mol*KPHPMSHiraoka and Mori, 1989gas phase

(CH5+ • 6Methane) + Methane = (CH5+ • 7Methane)

By formula: (CH5+ • 6CH4) + CH4 = (CH5+ • 7CH4)

Quantity Value Units Method Reference Comment
Δr11.2 ± 0.8kJ/molPHPMSHiraoka and Mori, 1989gas phase
Quantity Value Units Method Reference Comment
Δr111.J/mol*KPHPMSHiraoka and Mori, 1989gas phase

(CH5+ • 7Methane) + Methane = (CH5+ • 8Methane)

By formula: (CH5+ • 7CH4) + CH4 = (CH5+ • 8CH4)

Quantity Value Units Method Reference Comment
Δr8.5 ± 0.8kJ/molPHPMSHiraoka and Mori, 1989gas phase
Quantity Value Units Method Reference Comment
Δr90.4J/mol*KPHPMSHiraoka and Mori, 1989gas phase

(CH5+ • 8Methane) + Methane = (CH5+ • 9Methane)

By formula: (CH5+ • 8CH4) + CH4 = (CH5+ • 9CH4)

Quantity Value Units Method Reference Comment
Δr6.44kJ/molPHPMSHiraoka and Mori, 1989gas phase; Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
Δr84.J/mol*KN/AHiraoka and Mori, 1989gas phase; Entropy change calculated or estimated

CH5+ + Hydrogen = (CH5+ • Hydrogen)

By formula: CH5+ + H2 = (CH5+ • H2)

Quantity Value Units Method Reference Comment
Δr7.87 ± 0.42kJ/molPHPMSHiraoka, Kudaka, et al., 1991gas phase
Quantity Value Units Method Reference Comment
Δr50.6J/mol*KPHPMSHiraoka, Kudaka, et al., 1991gas phase

(CH5+ • Hydrogen) + Hydrogen = (CH5+ • 2Hydrogen)

By formula: (CH5+ • H2) + H2 = (CH5+ • 2H2)

Quantity Value Units Method Reference Comment
Δr7.45 ± 0.42kJ/molPHPMSHiraoka, Kudaka, et al., 1991gas phase
Quantity Value Units Method Reference Comment
Δr67.8J/mol*KPHPMSHiraoka, Kudaka, et al., 1991gas phase

(CH5+ • 2Hydrogen) + Hydrogen = (CH5+ • 3Hydrogen)

By formula: (CH5+ • 2H2) + H2 = (CH5+ • 3H2)

Quantity Value Units Method Reference Comment
Δr6.74 ± 0.42kJ/molPHPMSHiraoka, Kudaka, et al., 1991gas phase
Quantity Value Units Method Reference Comment
Δr94.6J/mol*KPHPMSHiraoka, Kudaka, et al., 1991gas phase

(CH5+ • 3Hydrogen) + Hydrogen = (CH5+ • 4Hydrogen)

By formula: (CH5+ • 3H2) + H2 = (CH5+ • 4H2)

Quantity Value Units Method Reference Comment
Δr6.57 ± 0.42kJ/molPHPMSHiraoka, Kudaka, et al., 1991gas phase
Quantity Value Units Method Reference Comment
Δr108.J/mol*KPHPMSHiraoka, Kudaka, et al., 1991gas phase

CH5+ + Nitrogen = (CH5+ • Nitrogen)

By formula: CH5+ + N2 = (CH5+ • N2)

Quantity Value Units Method Reference Comment
Δr28.kJ/molHPMSSpeller, 1983gas phase
Quantity Value Units Method Reference Comment
Δr82.4J/mol*KHPMSSpeller, 1983gas phase

References

Go To: Top, Ion clustering data, Notes

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

Hiraoka and Mori, 1989
Hiraoka, K.; Mori, T., Gas - Phase Stability and Structure of Cluster Ions CH5+(CH4)n with n = 1 - 9, Chem. Phys. Lett., 1989, 161, 2, 111, https://doi.org/10.1016/0009-2614(89)85040-7 . [all data]

Hiraoka and Kebarle, 1975
Hiraoka, K.; Kebarle, P., Energetics, Stabilities and Possible Structures of CH5+(CH4)n Clusters from Gas Phase Study of Equilibria CH5+(CH4)n - 1 + CH4 = CH5+(CH4)n for n = 1 - 5, J. Am. Chem. Soc., 1975, 97, 15, 4179, https://doi.org/10.1021/ja00848a005 . [all data]

Field and Beggs, 1971
Field, F.H.; Beggs, D.P., Reversible Reactions of Gas Phase Ions. III. Studies with Methane at 0.1-1.0 Torr and 77-300 K, J. Am. Chem. Soc., 1971, 93, 7, 1585, https://doi.org/10.1021/ja00736a003 . [all data]

Hiraoka, Kudaka, et al., 1991
Hiraoka, K.; Kudaka, I.; Yamabe, S., Gas-Phase Solvation of CH5+ with H2, Chem. Phys. Lett., 1991, 184, 4, 271, https://doi.org/10.1016/0009-2614(91)85122-D . [all data]

Speller, 1983
Speller, C.V., Ph. D. Thesis, Universite de Paris Sud, 1983. [all data]


Notes

Go To: Top, Ion clustering data, References