Me3SiCH2 anion
- Formula: C4H11Si-
- Molecular weight: 87.2162
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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 |
|---|---|---|---|
| 1.07 ± 0.16 | D-EA | Damrauer, Kass, et al., 1988 | Comparable to fluorobenzene |
| 0.950 ± 0.013 | LPD | Wetzel and Brauman, 1988 |
Protonation reactions
C4H11Si- + =
By formula: C4H11Si- + H+ = C4H12Si
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 388.2 ± 3.1 | kcal/mol | G+TS | Damrauer, Kass, et al., 1988 | gas phase; Comparable to fluorobenzene |
| ΔrH° | 390.9 ± 2.0 | kcal/mol | D-EA | Wetzel and Brauman, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 379.0 ± 3.0 | kcal/mol | IMRB | Damrauer, Kass, et al., 1988 | gas phase; Comparable to fluorobenzene |
| ΔrG° | 381.7 ± 2.1 | kcal/mol | H-TS | Wetzel and Brauman, 1988 | gas phase |
| ΔrG° | 390.7 ± 5.0 | kcal/mol | IMRB | DePuy and Damrauer, 1984 | 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.
Damrauer, Kass, et al., 1988
Damrauer, R.; Kass, S.R.; DePuy, C.H.,
Gas-Phase Acidities of Methylsilanes: C-H versus Si-H,
Organomet., 1988, 7, 3, 637, https://doi.org/10.1021/om00093a011
. [all data]
Wetzel and Brauman, 1988
Wetzel, D.M.; Brauman, J.I.,
Quantitative Measure of alpha-Silyl Carbanion Stabilization. The Electron Affinity of (Trimethylsilyl)methyl Radical,
J. Am. Chem. Soc., 1988, 110, 25, 8333, https://doi.org/10.1021/ja00233a008
. [all data]
DePuy and Damrauer, 1984
DePuy, C.H.; Damrauer, R.,
Reactions of organosilane anionic species with nitrous oxide,
Organometallics, 1984, 3, 362. [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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