Ethene, 1,2-dibromo-, (Z)-
- Formula: C2H2Br2
- Molecular weight: 185.845
- IUPAC Standard InChIKey: UWTUEMKLYAGTNQ-UPHRSURJSA-N
- CAS Registry Number: 590-11-4
- Chemical structure:
This structure is also available as a 2d Mol file - Stereoisomers:
- Other names: (Z)-1,2-Dibromoethylene
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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 as indicated in comments:
AC - William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
40.6 | 314. | A | Stephenson and Malanowski, 1987 | Based on data from 299. to 351. K. See also Noyes, Noyes, et al., 1950 and Dykyj, 1970.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
299.39 to 350.79 | 4.703 | 1655.723 | -35.019 | Noyes, Noyes, et al., 1950 | Coefficents calculated by NIST from author's data. |
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 |
---|---|---|---|
9.63 ± 0.01 | S | Schander and Russell, 1976 | LLK |
9.32 ± 0.02 | PE | Chadwick, Frost, et al., 1972 | LLK |
9.45 ± 0.02 | PI | Momigny, 1960 | RDSH |
9.45 | PI | Bralsford, Harris, et al., 1960 | RDSH |
9.63 | PE | Wittel and Bock, 1974 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C2H2Br+ | 11.44 ± 0.05 | Br | EI | Momigny, 1961 | RDSH |
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]
Noyes, Noyes, et al., 1950
Noyes, Richard M.; Noyes, Winninette A.; Steinmetz, Hyman,
Vapor Pressures of cis and trans Disubstituted Ethylenes,
J. Am. Chem. Soc., 1950, 72, 1, 33-34, https://doi.org/10.1021/ja01157a008
. [all data]
Dykyj, 1970
Dykyj, J.,
Petrochemica, 1970, 10, 2, 51. [all data]
Schander and Russell, 1976
Schander, J.; Russell, B.R.,
Vacuum ultraviolet spectra of bromoethylene and dibromoethylenes,
J. Am. Chem. Soc., 1976, 98, 6900. [all data]
Chadwick, Frost, et al., 1972
Chadwick, D.; Frost, D.C.; Katrib, A.; McDowell, C.A.; McLean, R.A.N.,
Photoelectron spectra of some bromoethylenes and 2-bromopropene,
Can. J. Chem., 1972, 50, 2642. [all data]
Momigny, 1960
Momigny, J.,
Les potentials d'ionisation des dihalogenoethylenes cis et trans,
Bull. Classe Sci. Acad. Roy. Belg., 1960, 46, 686. [all data]
Bralsford, Harris, et al., 1960
Bralsford, R.; Harris, P.V.; Price, W.C.,
The effect of fluorine on the electronic spectra and ionization potentials of molecules,
Proc. Roy. Soc. (London), 1960, A258, 459. [all data]
Wittel and Bock, 1974
Wittel, K.; Bock, H.,
Photoelektronenspekten und molekuleigenschaften. XXVII. Chlor- und bromathylene- beispiele fur anderungen in π- und σ-Systemen,
Chem. Ber., 1974, 107, 317. [all data]
Momigny, 1961
Momigny, J.,
Comportement des dihalogenoethylenes cis et trans sous l'impact electronique,
Bull. Soc. Chim. Belges, 1961, 70, 241. [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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