1,2-Dibromotetrafluoroethane
- Formula: C2Br2F4
- Molecular weight: 259.823
- IUPAC Standard InChI: InChI=1S/C2Br2F4/c3-1(5,6)2(4,7)8
- IUPAC Standard InChIKey: KVBKAPANDHPRDG-UHFFFAOYSA-N
- CAS Registry Number: 124-73-2
- 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: Ethane, 1,2-dibromo-1,1,2,2-tetrafluoro-; Ethane, 1,2-dibromotetrafluoro-; s-Dibromotetrafluoroethane; F-114B2; Freon 114B2; Halon 2402; 1,2-Dibromo-1,1,2,2-tetrafluoroethane; 1,2-Dibromoperfluoroethane; (CF2Br)2; Fluorocarbon 114B2; sym-Dibromotetrafluoroethane; FC 114B2; Fluobrene; Khladon 114B2; R 114B2; Daiflon 114B2; 76199-55-8; 1,2-Dibromo tetrafluoro methane
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Condensed phase thermochemistry data
Go To: Top, Reaction thermochemistry data, 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: Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| S°liquid | 299.4 | J/mol*K | N/A | Kosarukina, Zhogin, et al., 1982 |
Constant pressure heat capacity of liquid
| Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 173.8 | 298.15 | Vesely, Zabransky, et al., 1988 | T = 298 to 318 K. Cp(J/mol*K) = 131.53 + 0.1420(T/K) (298 to 318 K). |
| 170.8 | 298.15 | Kosarukina, Zhogin, et al., 1982 | T = 8 to 300 K. |
Reaction thermochemistry 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
+
=
By formula: C2F4 + Br2 = C2Br2F4
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -161.0 | kJ/mol | Cm | Lacher, Casali, et al., 1956 | gas phase; Heat of bromination |
=
+
By formula: C2Br2F4 = C2F4 + Br2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 160.99 | kJ/mol | Cm | Lacher, Casali, et al., 1956 | gas phase |
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: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 11.1 | PE | Chau and McDowell, 1976 | |
| 11.44 ± 0.01 | PE | Chau and McDowell, 1976 | Vertical value |
References
Go To: Top, Condensed phase thermochemistry data, 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.
Kosarukina, Zhogin, et al., 1982
Kosarukina, E.A.; Zhogin, D.Yu.; Kolesov, V.P.; Kuramshina, G.M.; Pentin, Yu.A.; Izmest'ev, I.V.; Danilov, A.V.,
Heat capacity in the range 8-300 K, thermodynamic functions, and conformational isomerism of 1,2-dibromotetrafluoroethane,
Zhur. Fiz. Khim., 1982, 56, 1892-1896. [all data]
Vesely, Zabransky, et al., 1988
Vesely, F.; Zabransky, M.; Barcal, P.; Svoboda, V.,
Molar heat capacities of four liquid fluorinated and halogenated ethanes,
J. Chem. Thermodynam., 1988, 20, 1283-1285. [all data]
Lacher, Casali, et al., 1956
Lacher, J.R.; Casali, L.; Park, J.D.,
Reaction heats of organic halogen compounds V. The vapor phase bromination of tetrafluoroethylene and trifluorochloroethylene,
J. Phys. Chem., 1956, 60, 608-610. [all data]
Chau and McDowell, 1976
Chau, F.T.; McDowell, C.A.,
Photoelectron spectra of 1,2-dibromo-1,1-difluoroethane, 1,2-bromochloroethane, and 1,2-dichloro-, 1,2-dibromo-, and 1,2-diiodotetrafluoroethane,
J. Phys. Chem., 1976, 80, 2923. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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