Ethene, trifluoro-
- Formula: C2HF3
- Molecular weight: 82.0245
- IUPAC Standard InChI: InChI=1S/C2HF3/c3-1-2(4)5/h1H
- IUPAC Standard InChIKey: MIZLGWKEZAPEFJ-UHFFFAOYSA-N
- CAS Registry Number: 359-11-5
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Trifluoroethylene; Ethylene, trifluoro-; Ethylene trifluoride; Trifluoroethene; C2HF3
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Reaction thermochemistry data
Go To: Top, References, Notes
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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Individual Reactions
+
= (
•
)
By formula: F- + C2HF3 = (F- • C2HF3)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 26.3 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1983 | gas phase; B,M |
| ΔrH° | 24.3 ± 6.0 | kcal/mol | IMRB | Sullivan and Beauchamp, 1976 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 25.6 | cal/mol*K | N/A | Larson and McMahon, 1983 | gas phase; switching reaction(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 18.7 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1983 | gas phase; B,M |
C2F3- + =
By formula: C2F3- + H+ = C2HF3
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 389.5 ± 5.8 | kcal/mol | D-EA | Spyrou, Sauers, et al., 1983 | gas phase; From C3F8. G3MP2B3 calculations indicate an EA of ca. 2.4 eV, and HOF(A-) of -110 kcal/mol.; B |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Larson and McMahon, 1983
Larson, J.W.; McMahon, T.B.,
Strong hydrogen bonding in gas-phase anions. An ion cyclotron resonance determination of fluoride binding energetics to bronsted acids from gas-phase fluoride exchange equilibria measurements,
J. Am. Chem. Soc., 1983, 105, 2944. [all data]
Sullivan and Beauchamp, 1976
Sullivan, S.A.; Beauchamp, J.L.,
Competition between proton transfer and elimination in the reactions of strong bases with fluoroethanes in the gas phase. Influence of base strength on reactivity,
J. Am. Chem. Soc., 1976, 98, 1160. [all data]
Arshadi, Yamdagni, et al., 1970
Arshadi, M.; Yamdagni, R.; Kebarle, P.,
Hydration of Halide Negative Ions in the Gas Phase. II. Comparison of Hydration Energies for the Alkali Positive and Halide Negative Ions,
J. Phys. Chem., 1970, 74, 7, 1475, https://doi.org/10.1021/j100702a014
. [all data]
Spyrou, Sauers, et al., 1983
Spyrou, S.M.; Sauers, I.; Christophorou, L.G.,
Electron attachment to the perfluoroalkanes n-CnF2n+2 (n = 1-6) and i-C4F10,
J. Chem. Phys., 1983, 78, 7200. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- 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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