F3SiCH2 anion
- Formula: CH2F3Si-
- Molecular weight: 99.1078
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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
Protonation reactions
CH2F3Si- + =
By formula: CH2F3Si- + H+ = CH3F3Si
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1542. ± 16. | kJ/mol | G+TS | Allison and McMahon, 1990 | gas phase; Between acetone and acetaldehyde. In conflict with Campanaro, Marvin, et al., 1988 |
| ΔrH° | 1555. ± 19. | kJ/mol | G+TS | Campanaro, Marvin, et al., 1988 | gas phase; Between HF and acetone |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1508. ± 16. | kJ/mol | IMRB | Allison and McMahon, 1990 | gas phase; Between acetone and acetaldehyde. In conflict with Campanaro, Marvin, et al., 1988 |
| ΔrG° | 1522. ± 19. | kJ/mol | IMRB | Campanaro, Marvin, et al., 1988 | gas phase; Between HF and acetone |
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.
Allison and McMahon, 1990
Allison, C.E.; McMahon, T.B.,
How Strong is the Si=C Bond in Fluoro- and Methyl Substituted Silaethylenes? An Experimental Determination of Pi Bond Strengths,
J. Am. Chem. Soc., 1990, 112, 5, 1672, https://doi.org/10.1021/ja00161a002
. [all data]
Campanaro, Marvin, et al., 1988
Campanaro, A.; Marvin, C.H.; Morehouse, S.P.; McMahon, T.B.,
A Gas-phase Anionic Analog of the Wittig Reaction. An Ion Cyclotron Resonance Study of the Gas Phase Ion Chemistry of Silyl Carbanions.,
Org. Mass Spectrom., 1988, 23, 9, 663, https://doi.org/10.1002/oms.1210230907
. [all data]
Notes
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- 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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