MeCO anion
- Formula: C2H3O-
- Molecular weight: 43.0452
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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
Protonation reactions
C2H3O- + =
By formula: C2H3O- + H+ = C2H4O
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1645.1 ± 4.0 | kJ/mol | D-EA | Nimlos, Soderquist, et al., 1989 | gas phase |
| ΔrH° | 1636. ± 8.8 | kJ/mol | G+TS | DePuy, Bierbaum, et al., 1985 | gas phase |
| ΔrH° | 1619. ± 33. | kJ/mol | CIDT | Graul and Squires, 1990 | gas phase |
| ΔrH° | <1598.3 | kJ/mol | CIDT | Graul and Squires, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1613. ± 4.6 | kJ/mol | H-TS | Nimlos, Soderquist, et al., 1989 | gas phase |
| ΔrG° | 1604. ± 8.4 | kJ/mol | IMRB | DePuy, Bierbaum, et al., 1985 | gas phase |
| ΔrG° | <1565.9 ± 2.5 | kJ/mol | H-TS | Graul and Squires, 1988 | gas phase |
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.
Nimlos, Soderquist, et al., 1989
Nimlos, M.R.; Soderquist, J.A.; Ellison, G.B.,
Spectroscopy of CH3CO- and CH3CO,
J. Am. Chem. Soc., 1989, 111, 20, 7675, https://doi.org/10.1021/ja00202a001
. [all data]
DePuy, Bierbaum, et al., 1985
DePuy, C.H.; Bierbaum, V.M.; Damrauer, R.; Soderquist, J.A.,
Gas-phase reactions of the acetyl anion,
J. Am. Chem. Soc., 1985, 107, 3385. [all data]
Graul and Squires, 1990
Graul, S.T.; Squires, R.R.,
Gas-Phase Acidities Derived from Threshold Energies for Activated Reactions,
J. Am. Chem. Soc., 1990, 112, 7, 2517, https://doi.org/10.1021/ja00163a007
. [all data]
Graul and Squires, 1988
Graul, S.T.; Squires, R.R.,
On the Existence of Alkyl Carbanions in the Gas Phase,
J. Am. Chem. Soc., 1988, 110, 2, 607, https://doi.org/10.1021/ja00210a054
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
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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