CF3CO2 anion
- Formula: C2F3O2-
- Molecular weight: 113.0160
- IUPAC Standard InChI: InChI=1S/C2HF3O2/c3-2(4,5)1(6)7/h(H,6,7)/p-1
- IUPAC Standard InChIKey: DTQVDTLACAAQTR-UHFFFAOYSA-M
- CAS Registry Number: 14477-72-6
- Chemical structure:
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Ion clustering 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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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Clustering reactions
+
= (
•
)
By formula: C2F3O2- + H2O = (C2F3O2- • H2O)
Bond type: Hydrogen bond (negative ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 57.7 ± 6.3 | kJ/mol | N/A | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B |
| ΔrH° | 57.3 ± 4.2 | kJ/mol | N/A | Meot-Ner and Sieck, 1986 | gas phase; B,M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 100. | J/mol*K | PHPMS | Meot-Ner and Sieck, 1986 | gas phase; M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 28.5 ± 1.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B,M |
| ΔrG° | 27. ± 6.7 | kJ/mol | TDAs | Meot-Ner and Sieck, 1986 | gas phase; B |
( •
) +
= (
• 2
)
By formula: (C2F3O2- • H2O) + H2O = (C2F3O2- • 2H2O)
Bond type: Hydrogen bond (negative ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 49.0 ± 6.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 19.7 ± 1.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B,M |
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.
Blades, Klassen, et al., 1995
Blades, A.T.; Klassen, J.S.; Kebarle, P.,
Free Energies of Hydration in the Gas Phase on the Anions of Some Oxo Acids of C, N, S, P, Cl and I,
J. Am. Chem. Soc., 1995, 117, 42, 10563, https://doi.org/10.1021/ja00147a019
. [all data]
Meot-Ner and Sieck, 1986
Meot-Ner, M.; Sieck, L.W.,
The ionic hydrogen bond and ion solvation. 5. OH...O- bonds. Gas phase solvation and clustering of alkoxide and carboxylate anions,
J. Am. Chem. Soc., 1986, 108, 7525. [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 ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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