(E)-1,2-Diiodoethylene

• Formula: C₂H₂I₂
• Molecular weight: 279.8462
• CAS Registry Number: 590-27-2
• Information on this page:
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

Enthalpy of sublimation

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

C₂H₂I₂ =  + 

By formula: C₂H₂I₂ = C₂H₂ + I₂

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 as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

References

Go To: Top, Phase change 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.

Furuyama, Golden, et al., 1969
Furuyama, S.; Golden, D.M.; Benson, S.W., The Thermochemistry of the Gas Phase Equilibria i-C3H7I = C3H6 + HI, n-C3H7I = i-C3H7I and C3H6 + 2HI = C3H8 + I2, J. Chem. Thermodyn., 1969, 1, 363-75. [all data]

Andrews and Keefer, 1951
Andrews, L.J.; Keefer, R.M., The Argentation of Organic Iodides, J. Am. Chem. Soc., 1951, 73, 5733-5736. [all data]

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]

Dykyj, 1970
Dykyj, J., Petrochemica, 1970, 10, 2, 51. [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]

Broadway and Fraser, 1933
Broadway, L.F.; Fraser, Ronald G.J., 111. The vapour pressure of trans-di-iodoethylene, J. Chem. Soc., 1933, 429, https://doi.org/10.1039/jr9330000429 . [all data]

Jones, 1960
Jones, A.H., Sublimation Pressure Data for Organic Compounds., J. Chem. Eng. Data, 1960, 5, 2, 196-200, https://doi.org/10.1021/je60006a019 . [all data]

Furuyama, Golden, et al., 1968
Furuyama, S.; Golden, D.M.; Benson, S.W., The thermochemistry of the gas-phase equilibria trans-1,2-diiodoethylene = acetylene + I₂ and trans-1,2-diiodoethylene = cis-1,2-diiodoethylene, J. Phys. Chem., 1968, 72, 3204-3208. [all data]

Wittel, Bock, et al., 1974
Wittel, K.; Bock, H.; Manne, R., Photoelectron spectra of iodo ethylenes. A simple method to incorporate spin orbit coupling in molecular orbital models, Tetrahedron, 1974, 30, 651. [all data]

Bock and Wittel, 1972
Bock, H.; Wittel, K., Photoelectron spectra and molecular properties of trans-dihalogenoethylenes: substituent effects spin-orbit coupling, J. Chem. Soc., Chem. Commun., 1972, 602. [all data]

Notes

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• Symbols used in this document:
  

  Tfus	Fusion (melting) point
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔsubH	Enthalpy of sublimation
  ΔvapH	Enthalpy of vaporization

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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