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Reaction data

H3+ + Hydrogen = (H3+ bullet Hydrogen)


Enthalpy of reaction at standard conditions (nominally 298.15 K, 1 atm.)

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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

DeltarH° (kJ/mol) Method Reference Comment
29.3 ± 0.4PHPMSHiraoka and Mori, 1989gas phase; M
29. ± 1.PHPMSHiraoka, 1987gas phase; M
28.HPMSBeuhler, Ehrenson, et al., 1983gas phase; Entropy change is questionable; M
30.HPMSBeuhler, Ehrenson, et al., 1983gas phase; deuterated; M
24.DTElford, 1983gas phase; Entropy change is questionable; M; Data excluded from overall average
24. ± 4.6IMobElford, 1983gas phase; M; Data excluded from overall average
36.DTJohnsen, Huang, et al., 1976gas phase; corrected for ln T term by Keesee and Castleman, 1986; M; Data excluded from overall average
40.PHPMSHiraoka and Kebarle, 1975gas phase; M; Data excluded from overall average
41.HPMSBennett and Field, 1972gas phase; M; Data excluded from overall average
21.HPMSArifov, Pozharov, et al., 1971gas phase; Entropy change is questionable; M; Data excluded from overall average
23.HPMSArifov, Pozharov, et al., 1971, 2gas phase; deuterated, Entropy change is questionable; M; Data excluded from overall average

References

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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., Isotope Effect and Nature of Bonding in the Cluster Ions H3+(Ar)n and D3+(Ar)n, J. Chem. Phys., 1989, 91, 8, 4821, https://doi.org/10.1063/1.456720 . [all data]

Hiraoka, 1987
Hiraoka, K., A Determination of the Stabilities of H3+(H2)n with n=1-9 from Measurements of the gas-Phase Ion Equilibria H3+(H2)n-1 + H2 = H3+(H2)n, J. Chem. Phys., 1987, 87, 7, 4048, https://doi.org/10.1063/1.452909 . [all data]

Beuhler, Ehrenson, et al., 1983
Beuhler, R.J.; Ehrenson, S.; Friedman, L., Hydrogen Cluster Ion Equilibria, J. Chem. Phys., 1983, 79, 12, 5982, https://doi.org/10.1063/1.445781 . [all data]

Elford, 1983
Elford, M.T., The Heat of Dissociation of H5+ Derived from Measurements of Ion Mobilities, J. Chem. Phys., 1983, 79, 12, 5951, https://doi.org/10.1063/1.445777 . [all data]

Johnsen, Huang, et al., 1976
Johnsen, R.; Huang, C.M.; Biondi, M.A., Three - Body Association Reactions of H+ and H3+ Ions in Hydrogen from 135 to 300K, J. Chem. Phys., 1976, 65, 4, 1539, https://doi.org/10.1063/1.433209 . [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]

Hiraoka and Kebarle, 1975
Hiraoka, K.; Kebarle, P., A Determination of the Stabilities of H5+, H7+, H9+, and H11+ from Measurement of the Gas Phase Ion Equilibria Hn+ + H2 = H(n + 2)+ (n = 3, 5, 7, 9), J. Chem. Phys., 1975, 62, 6, 2267, https://doi.org/10.1063/1.430751 . [all data]

Bennett and Field, 1972
Bennett, S.L.; Field, F.H., Reversible Reactions of Gaseous Ions. VII. The Hydrogen System, J. Am. Chem. Soc., 1972, 94, 25, 8669, https://doi.org/10.1021/ja00780a003 . [all data]

Arifov, Pozharov, et al., 1971
Arifov, U.A.; Pozharov, S.L.; Chernov, I.G.; Mukhamediev, Z.A., Ionic-Molecular Reactions in Hydrogen at High Pressures, High Energy Chem., 1971, 5, 69. [all data]

Arifov, Pozharov, et al., 1971, 2
Arifov, U.A.; Pozharov, S.L.; Chernov, I.G.; Mukhamediev, Z.A., Mass Spectrometric Study of the Kinetics of D5+ Formation, High Energy Chem., 1971, 5, 79. [all data]


Notes

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