Ethylene ion
- Formula: C2H4+
- Molecular weight: 28.0526
- CAS Registry Number: 34470-02-5
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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
By formula: C2H4+ + C2H6 = (C2H4+ • C2H6)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.3 | kcal/mol | PHPMS | Hiraoka and Kebarle, 1980 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 21. | cal/mol*K | PHPMS | Hiraoka and Kebarle, 1980 | gas phase |
By formula: C2H4+ + C2H4 = (C2H4+ • C2H4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 15.8 | kcal/mol | PI | Ono, Linn, et al., 1984 | gas phase |
ΔrH° | 18.2 | kcal/mol | PI | Ceyer, Tiedemann, et al., 1979 | gas phase |
By formula: (C2H4+ • C2H4) + C2H4 = (C2H4+ • 2C2H4)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 4.2 | kcal/mol | PI | Ceyer, Tiedemann, et al., 1979 | gas 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.
Hiraoka and Kebarle, 1980
Hiraoka, K.; Kebarle, P.,
Ion Molecule Reactions in Ethane. Thermochemistry and Structures of the Intermediate Complexes: C4H11+ and C4H10+ Formed in the Reactions of C2H5+ and C2H4+ with C2H6,
Can. J. Chem., 1980, 58, 21, 2262, https://doi.org/10.1139/v80-364
. [all data]
Ono, Linn, et al., 1984
Ono, Y.; Linn, S.H.; Tzeng, W.-B.; Ng, C.Y.,
A Study of the Unimolecular Decomposition of the (C2H4)2+ Complex,
J. Chem. Phys., 1984, 80, 4, 1482, https://doi.org/10.1063/1.446897
. [all data]
Ceyer, Tiedemann, et al., 1979
Ceyer, S.T.; Tiedemann, P.W.; Ng, C.Y.; Mahan, B.H.; Lee, Y.T.,
Photoionization of Ethylene Clusters,
J. Chem. Phys., 1979, 70, 5, 2138, https://doi.org/10.1063/1.437758
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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