CH2=C(OEt)O anion
- Formula: C4H7O2-
- Molecular weight: 87.0977
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Gas phase ion energetics 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: John E. Bartmess
Electron affinity of neutral species
| EAneutral (eV) | Method | Reference | Comment |
|---|---|---|---|
| 1.73 ± 0.20 | D-EA | Haas, Giblin, et al., 1998 | From transesterification equilibria |
Protonation reactions
C4H7O2- + =
By formula: C4H7O2- + H+ = C4H8O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1555. ± 17. | kJ/mol | G+TS | Haas, Giblin, et al., 1998 | gas phase; From transesterification equilibria |
| ΔrH° | 1543. ± 5.0 | kJ/mol | EIAE | Muftakhov, Vasil'ev, et al., 1999 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1527. ± 17. | kJ/mol | IMRE | Haas, Giblin, et al., 1998 | gas phase; From transesterification equilibria |
References
Go To: Top, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Haas, Giblin, et al., 1998
Haas, G.W.; Giblin, D.E.; Gross, M.L.,
The Mechanism and Thermodynamics of Transesterification of Acetate-Ester Enolates in the Gas Phase,
Int. J. Mass Spectrom. Ion Proc., 1998, 172, 1-2, 25, https://doi.org/10.1016/S0168-1176(97)83245-4
. [all data]
Muftakhov, Vasil'ev, et al., 1999
Muftakhov, M.V.; Vasil'ev, Y.V.; Mazunov, V.A.,
Determination of electron affinity of carbonyl radicals by means of negative ion mass spectrometry,
Rapid Commun. Mass Spectrom., 1999, 13, 12, 1104-1108, https://doi.org/10.1002/(SICI)1097-0231(19990630)13:12<1104::AID-RCM619>3.0.CO;2-C
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
EAneutral Electron affinity of neutral species ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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