CH2=CFO anion
- Formula: C2H2FO-
- Molecular weight: 61.0356
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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 |
|---|---|---|---|
| 2.195699 ± 0.000044 | LPES | Marks, Brauman, et al., 1988 | |
| 2.220 ± 0.091 | PD | Zimmerman, Reed, et al., 1977 |
Protonation reactions
C2H2FO- + =
By formula: C2H2FO- + H+ = C2H3FO
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1489. ± 16. | kJ/mol | G+TS | Farid and McMahon, 1980 | gas phase; Between MeCOCH2F, cyclopentadiene; value altered from reference due to change in acidity scale |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1460. ± 15. | kJ/mol | IMRB | Farid and McMahon, 1980 | gas phase; Between MeCOCH2F, cyclopentadiene; value altered from reference due to change in acidity scale |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Marks, Brauman, et al., 1988
Marks, J.; Brauman, J.I.; Mead, R.D.; Lykke, K.R.; Lineberger, W.C.,
Spectroscopy and Dynamics of the Dipole Supported State of Acetyl Fluoride Enolate Anion,
J. Chem. Phys., 1988, 88, 11, 6785, https://doi.org/10.1063/1.454424
. [all data]
Zimmerman, Reed, et al., 1977
Zimmerman, A.H.; Reed, K.J.; Brauman, J.I.,
Photodetachment of electrons from enolate anions. Gas phase electron affinities of enolate radicals,
J. Am. Chem. Soc., 1977, 99, 7203. [all data]
Farid and McMahon, 1980
Farid, R.; McMahon, T.B.,
The gas phase acidities of fluorinated acetones. An ICR investigation of the role of fluorine substituents in the stabilization of planar carbanions,
Can. J. Chem., 1980, 58, 2307. [all data]
Notes
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- 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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