Me3SiCH2 anion
- Formula: C4H11Si-
- Molecular weight: 87.2162
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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
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 |
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
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, 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, 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, Reaction thermochemistry data, 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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