1,1,4,4-Tetrafluoro-1,3-butadiene
- Formula: C4H2F4
- Molecular weight: 126.0523
- CAS Registry Number: 407-70-5
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Phase change 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: William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 5.35 | 256. | A | Stephenson and Malanowski, 1987 | Based on data from 239. to 271. K. |
Gas phase ion energetics data
Go To: Top, Phase change 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 as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 10.6 ± 0.1 | EI | Syrvatka, Gil'burd, et al., 1973 | LLK |
| 8.98 | PE | Brundle and Robin, 1970 | RDSH |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| CF3+ | 13.9 ± 0.1 | C3H2F | EI | Syrvatka, Gil'burd, et al., 1973 | LLK |
| CHF2+ | 14.3 ± 0.1 | C3F2H | EI | Syrvatka, Gil'burd, et al., 1973 | LLK |
| C3HF2+ | 14.0 ± 0.1 | CF2H | EI | Syrvatka, Gil'burd, et al., 1973 | LLK |
| C3H2F+ | 12.4 ± 0.1 | CF3 | EI | Syrvatka, Gil'burd, et al., 1973 | LLK |
| C3H2F2+ | 14.4 ± 0.2 | CF2 | EI | Syrvatka, Gil'burd, et al., 1973 | LLK |
| C4H2F3+ | 15.2 ± 0.1 | F | EI | Syrvatka, Gil'burd, et al., 1973 | LLK |
References
Go To: Top, Phase change 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.
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Syrvatka, Gil'burd, et al., 1973
Syrvatka, B.G.; Gil'burd, M.M.; Bel'ferman, A.L.,
Ion-dissociative processes of some halogen containing butadienes and particles structure,
Zh. Org. Khim., 1973, 9, 1117. [all data]
Brundle and Robin, 1970
Brundle, C.R.; Robin, M.B.,
Nonplanarity in hexafluorobutadiene as revealed by photoelectron and optical spectroscopy,
J. Am. Chem. Soc., 1970, 92, 5550. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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