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Isobutene

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Ion clustering 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 as indicated in comments:
M - M. M. Meot-Ner (Mautner) and S. G. Lias
RCD - R.C. Dunbar

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

C3H9Si+ + Isobutene = (C3H9Si+ bullet Isobutene)

By formula: C3H9Si+ + C4H8 = (C3H9Si+ bullet C4H8)

QuantityValueUnitsMethodReferenceComment
Deltar153.kJ/molPHPMSLi and Stone, 1989gas phase; condensation; M
QuantityValueUnitsMethodReferenceComment
Deltar179.J/mol*KPHPMSLi and Stone, 1989gas phase; condensation; M

NH4+ + Isobutene = (NH4+ bullet Isobutene)

By formula: H4N+ + C4H8 = (H4N+ bullet C4H8)

QuantityValueUnitsMethodReferenceComment
Deltar146.kJ/molPHPMSMeot-Ner (Mautner) and Sieck, 1991gas phase; condensation; M
Deltar146.kJ/molPHPMSMeot-Ner (Mautner) and Sieck, 1990gas phase; forms t-C4H9NH3+; M
QuantityValueUnitsMethodReferenceComment
Deltar155.J/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1991gas phase; condensation; M
Deltar164.J/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1990gas phase; forms t-C4H9NH3+; M

Lithium ion (1+) + Isobutene = (Lithium ion (1+) bullet Isobutene)

By formula: Li+ + C4H8 = (Li+ bullet C4H8)

QuantityValueUnitsMethodReferenceComment
Deltar120.kJ/molICRStaley and Beauchamp, 1975gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 extrapolated; M

Sodium ion (1+) + Isobutene = (Sodium ion (1+) bullet Isobutene)

By formula: Na+ + C4H8 = (Na+ bullet C4H8)

Free energy of reaction

DeltarG° (kJ/mol)T (K)MethodReferenceComment
41.8298.IMREMcMahon and Ohanessian, 2000Anchor alanine=39.89; RCD

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.

Li and Stone, 1989
Li, X.; Stone, J.A., Determination of the beta silicon effect from a mass spectrometric study of the association of trimethylsilylium ion with alkenes, J. Am. Chem. Soc., 1989, 111, 15, 5586. [doi:10.1021/ja00197a013] [all data]

Meot-Ner (Mautner) and Sieck, 1991
Meot-Ner (Mautner), M.; Sieck, L.W., Proton affinity ladders from variable-temperature equilibrium measurements. 1. A reevaluation of the upper proton affinity range, J. Am. Chem. Soc., 1991, 113, 12, 4448. [doi:10.1021/ja00012a012] [all data]

Meot-Ner (Mautner) and Sieck, 1990
Meot-Ner (Mautner), M.; Sieck, L.W., Ion Thermochemistry at High Temperatures. 1. Thermochemistry of the Ammonium Ion from Variable - Temperature Equilibrium Measurements. Proton Transfer, Association, and Decomposition Reactions in Ammonia, Isobutene, and t-Butylamine, J. Phys. Chem., 1990, 94, 19, 7730. [doi:10.1021/j100382a076] [all data]

Staley and Beauchamp, 1975
Staley, R.H.; Beauchamp, J.L., Intrinsic Acid - Base Properties of Molecules. Binding Energies of Li+ to pi - and n - Donor Bases, J. Am. Chem. Soc., 1975, 97, 20, 5920. [doi:10.1021/ja00853a050] [all data]

Dzidic and Kebarle, 1970
Dzidic, I.; Kebarle, P., Hydration of the Alkali Ions in the Gas Phase. Enthalpies and Entropies of Reactions M+(H2O)n-1 + H2O = M+(H2O)n, J. Phys. Chem., 1970, 74, 7, 1466. [doi:10.1021/j100702a013] [all data]

McMahon and Ohanessian, 2000
McMahon, T.B.; Ohanessian, G., An Experimental and Ab Initio Study of the Nature of the Binding in Gas-Phase Complexes of Sodium Ions, Chem. Eur. J., 2000, 6, 16, 2931. [doi:10.1002/1521-3765(20000818)6:16<2931::AID-CHEM2931>3.0.CO;2-7] [all data]


Notes

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