Me2SiH anion
- Formula: C2H7Si-
- Molecular weight: 59.1630
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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
C2H7Si- + =
By formula: C2H7Si- + H+ = C2H8Si
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 380.9 ± 2.1 | kcal/mol | D-EA | Brinkman, Berger, et al., 1994 | gas phase |
| ΔrH° | 384.7 ± 4.1 | kcal/mol | G+TS | Damrauer, Kass, et al., 1988 | gas phase; Between furan and methanol. |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 373.1 ± 2.2 | kcal/mol | H-TS | Brinkman, Berger, et al., 1994 | gas phase |
| ΔrG° | 377.0 ± 4.0 | kcal/mol | IMRB | Damrauer, Kass, et al., 1988 | gas phase; Between furan and methanol. |
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 |
|---|---|---|---|
| 1.071 ± 0.022 | LPD | Brinkman, Berger, et al., 1994 | |
| 0.90 ± 0.20 | D-EA | Damrauer, Kass, et al., 1988 | Between furan and methanol. |
Protonation reactions
C2H7Si- + =
By formula: C2H7Si- + H+ = C2H8Si
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 380.9 ± 2.1 | kcal/mol | D-EA | Brinkman, Berger, et al., 1994 | gas phase |
| ΔrH° | 384.7 ± 4.1 | kcal/mol | G+TS | Damrauer, Kass, et al., 1988 | gas phase; Between furan and methanol. |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 373.1 ± 2.2 | kcal/mol | H-TS | Brinkman, Berger, et al., 1994 | gas phase |
| ΔrG° | 377.0 ± 4.0 | kcal/mol | IMRB | Damrauer, Kass, et al., 1988 | gas phase; Between furan and methanol. |
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.
Brinkman, Berger, et al., 1994
Brinkman, E.A.; Berger, S.; Brauman, J.I.,
alpha-Silyl-substituent stabilization of carbanions and silyl anions,
J. Am. Chem. Soc., 1994, 116, 18, 8304, https://doi.org/10.1021/ja00097a042
. [all data]
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]
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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