CH2=Si(Me)O anion
- Formula: C2H5OSi-
- Molecular weight: 73.1465
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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: John E. Bartmess
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Individual Reactions
C2H5OSi- + =
By formula: C2H5OSi- + H+ = C2H6OSi
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 363.6 ± 4.1 | kcal/mol | G+TS | Damrauer and Krempp, 1990 | gas phase; between CF3CH2OH and CH3CHO in acidity |
| ΔrH° | 363.7 ± 4.1 | kcal/mol | G+TS | Froelicher, Freiser, et al., 1984 | gas phase; Between aniline, CF3CH2OH in acidity |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 356.5 ± 4.0 | kcal/mol | IMRB | Damrauer and Krempp, 1990 | gas phase; between CF3CH2OH and CH3CHO in acidity |
| ΔrG° | 356.6 ± 4.0 | kcal/mol | IMRB | Froelicher, Freiser, et al., 1984 | gas phase; Between aniline, CF3CH2OH in acidity |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, 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
C2H5OSi- + =
By formula: C2H5OSi- + H+ = C2H6OSi
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 363.6 ± 4.1 | kcal/mol | G+TS | Damrauer and Krempp, 1990 | gas phase; between CF3CH2OH and CH3CHO in acidity |
| ΔrH° | 363.7 ± 4.1 | kcal/mol | G+TS | Froelicher, Freiser, et al., 1984 | gas phase; Between aniline, CF3CH2OH in acidity |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 356.5 ± 4.0 | kcal/mol | IMRB | Damrauer and Krempp, 1990 | gas phase; between CF3CH2OH and CH3CHO in acidity |
| ΔrG° | 356.6 ± 4.0 | kcal/mol | IMRB | Froelicher, Freiser, et al., 1984 | gas phase; Between aniline, CF3CH2OH in acidity |
References
Go To: Top, Reaction thermochemistry data, 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.
Damrauer and Krempp, 1990
Damrauer, R.; Krempp, M.,
Gas Phase Ion-Molecule Chemistry of Methoxy-Substituted Silanes: Collision Induced Decomposition of Siloxide Ions Leading to Anions of Silaacetaldehyde and Methyl Silaformate,
Organomet., 1990, 9, 4, 999, https://doi.org/10.1021/om00118a015
. [all data]
Froelicher, Freiser, et al., 1984
Froelicher, S.W.; Freiser, B.S.; Squires, R.R.,
Dimethylsilanone Enolate,
J. Am. Chem. Soc., 1984, 106, 22, 6863, https://doi.org/10.1021/ja00334a077
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, 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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