Ethylene, 1,2-dichloro-, (E)-

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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

Ethylene, 1,2-dichloro-, (E)- = Ethylene, 1,2-dichloro-, (Z)-

By formula: C2H2Cl2 = C2H2Cl2

Quantity Value Units Method Reference Comment
Δr-2.0kJ/molEqkRozhnov, Levanova, et al., 1974liquid phase; GC
Δr-3.0 ± 0.67kJ/molEqkCraig, Piper, et al., 1971gas phase
Δr3.03kJ/molEqkWood and Stevenson, 1941gas phase; Heat of isomerization
Δr2.6kJ/molEqkMaroney, 1935gas phase; At 300-975 K

Ethylene, 1,2-dichloro-, (Z)- = Ethylene, 1,2-dichloro-, (E)-

By formula: C2H2Cl2 = C2H2Cl2

Quantity Value Units Method Reference Comment
Δr0.8kJ/molKinLaursen and Pimentel, 1989gas phase; Photolysis
Δr1.8 ± 0.4kJ/molEqkCraig, Piper, et al., 1971gas phase
Δr1.86 ± 0.084kJ/molEqkPitzer and Hollenberg, 1954liquid phase; Heat of isomerization at 0K

Ethene, 1,1-dichloro- = Ethylene, 1,2-dichloro-, (E)-

By formula: C2H2Cl2 = C2H2Cl2

Quantity Value Units Method Reference Comment
Δr-3.5kJ/molEqkRozhnov, Levanova, et al., 1974liquid phase; solvent: Dichloroethylene; GC

Ethylene, 1,2-dichloro-, (E)- + Bromine = Ethane, 1,2-dibromo-1,2-dichloro-

By formula: C2H2Cl2 + Br2 = C2H2Br2Cl2

Quantity Value Units Method Reference Comment
Δr-72.4kJ/molEqkMuller and Schumacher, 1939gas 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.

Rozhnov, Levanova, et al., 1974
Rozhnov, A.M.; Levanova, S.V.; Dvornikova, G.A.; Sadovnikova, S.L., Equilibrium of isomerization of dichloroethylenes, J. Appl. Chem. USSR, 1974, 47, 667-669. [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]

Wood and Stevenson, 1941
Wood, R.E.; Stevenson, D.P., The energy of isomerization of cis- and trans-dichloroethylene, J. Am. Chem. Soc., 1941, 63, 1650-1653. [all data]

Maroney, 1935
Maroney, W., The thermal equilibrium of the cis-trans isomers of dichloroethylene at high temperatures, J. Am. Chem. Soc., 1935, 57, 2397-2398. [all data]

Laursen and Pimentel, 1989
Laursen, S.L.; Pimentel, G.C., Matrix-induced intersystem crossing in the photochemistry of the 1,2-dichloroethenes, J. Phys. Chem., 1989, 93, 2328-2333. [all data]

Pitzer and Hollenberg, 1954
Pitzer, K.S.; Hollenberg, J.L., Cis- and trans-dichloroethylenes. The infrared spectra from 130-400 cm.-1 and the thermodynamic properties, J. Am. Chem. Soc., 1954, 76, 1493-1496. [all data]

Muller and Schumacher, 1939
Muller, K.L.; Schumacher, H.J., Die photochemische bromierung von transdichlorathylen und der photochemische durch brom sensibilisierte zerfall von dichlordibromathan, Z. Phys. Chem., 1939, 42, 327-345. [all data]


Notes

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