MeCO anion
- Formula: C2H3O-
- Molecular weight: 43.0452
- Information on this page:
- Other data available:
- Options:
Gas phase ion energetics data
Go To: Top, References, Notes
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° | 393.19 ± 0.96 | kcal/mol | D-EA | Nimlos, Soderquist, et al., 1989 | gas phase |
| ΔrH° | 391.0 ± 2.1 | kcal/mol | G+TS | DePuy, Bierbaum, et al., 1985 | gas phase |
| ΔrH° | 387.0 ± 8.0 | kcal/mol | CIDT | Graul and Squires, 1990 | gas phase |
| ΔrH° | <382.00 | kcal/mol | CIDT | Graul and Squires, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 385.4 ± 1.1 | kcal/mol | H-TS | Nimlos, Soderquist, et al., 1989 | gas phase |
| ΔrG° | 383.3 ± 2.0 | kcal/mol | IMRB | DePuy, Bierbaum, et al., 1985 | gas phase |
| ΔrG° | <374.25 ± 0.60 | kcal/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
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.