Ethene, 1,2-dibromo-, (Z)-

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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
40.6314.AStephenson and Malanowski, 1987Based 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 350.794.7031655.723-35.019Noyes, Noyes, et al., 1950Coefficents calculated by NIST from author's data.

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

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Individual Reactions

Ethene, 1,2-dibromo-, (E)- = Ethene, 1,2-dibromo-, (Z)-

By formula: C2H2Br2 = C2H2Br2

Quantity Value Units Method Reference Comment
Δr-1.0 ± 1.4kJ/molEqkCraig, Piper, et al., 1971gas phase
Δr0.42 ± 0.67kJ/molKinDowling, Puranik, et al., 1957gas phase

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.

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]

Craig, Piper, et al., 1971
Craig, N.C.; Piper, L.G.; Wheeler, V.L., Thermodynamics of cis-trans isomerizations. II. The 1-chloro-2-fluoroethylenes, 1,2-difluorocyclopropanes, and related molecules, J. Phys. Chem., 1971, 75, 1453-1460. [all data]

Dowling, Puranik, et al., 1957
Dowling, J.M.; Puranik, P.G.; Meister, A.G., Vibrational spectra, potential constants, and calculated thermodynamic properties of cis- and trans-BrHC=CHBr, and cis- and trans-BrDC=CDBr, J. Chem. Phys., 1957, 26, 233-240. [all data]


Notes

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