C7H5F3O3S
- Formula: C7H5F3O3S
- Molecular weight: 226.173
- CAS Registry Number: 432-84-8
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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics 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
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Individual Reactions
C7H4F3O3S- + = C7H5F3O3S
By formula: C7H4F3O3S- + H+ = C7H5F3O3S
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1349. ± 8.8 | kJ/mol | G+TS | Koppel, Taft, et al., 1994 | gas phase |
| ΔrH° | 1348. ± 8.8 | kJ/mol | G+TS | Taft and Topsom, 1987 | gas phase; Slightly revised with re-anchoring, 1991. 91TAF; value altered from reference due to change in acidity scale |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1321. ± 8.4 | kJ/mol | IMRE | Koppel, Taft, et al., 1994 | gas phase |
| ΔrG° | 1319. ± 8.4 | kJ/mol | IMRE | Taft and Topsom, 1987 | gas phase; Slightly revised with re-anchoring, 1991. 91TAF; value altered from reference due to change in acidity scale |
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
De-protonation reactions
C7H4F3O3S- + = C7H5F3O3S
By formula: C7H4F3O3S- + H+ = C7H5F3O3S
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1349. ± 8.8 | kJ/mol | G+TS | Koppel, Taft, et al., 1994 | gas phase |
| ΔrH° | 1348. ± 8.8 | kJ/mol | G+TS | Taft and Topsom, 1987 | gas phase; Slightly revised with re-anchoring, 1991. 91TAF; value altered from reference due to change in acidity scale |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1321. ± 8.4 | kJ/mol | IMRE | Koppel, Taft, et al., 1994 | gas phase |
| ΔrG° | 1319. ± 8.4 | kJ/mol | IMRE | Taft and Topsom, 1987 | gas phase; Slightly revised with re-anchoring, 1991. 91TAF; value altered from reference due to change in acidity scale |
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.
Koppel, Taft, et al., 1994
Koppel, I.A.; Taft, R.W.; Anvia, F.; Zhu, S.Z.; Hu, L.Q.; Sung, K.S.; Desmarteau, D.D.; Yagupolskii, L.M.,
The Gas-Phase Acidities of Very Strong Neutral Bronsted Acids,
J. Am. Chem. Soc., 1994, 116, 7, 3047, https://doi.org/10.1021/ja00086a038
. [all data]
Taft and Topsom, 1987
Taft, R.W.; Topsom, R.D.,
The Nature and Analysis of Substituent Effects,
Prog. Phys. Org. Chem., 1987, 16, 1. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- 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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