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(E)-1,2-Diiodoethylene

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Gas phase 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

Quantity Value Units Method Reference Comment
Deltafgas207.4 ± 0.84kJ/molEqkFuruyama, Golden, et al., 1968Reanalyzed by Cox and Pilcher, 1970, Original value = 206. ± 0.4 kJ/mol

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

Quantity Value Units Method Reference Comment
Tfus346.2KN/AFuruyama, Golden, et al., 1969Uncertainty assigned by TRC = 1. K; TRC
Tfus344.9KN/AAndrews and Keefer, 1951Uncertainty assigned by TRC = 1. K; TRC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
42.3365.AStephenson and Malanowski, 1987Based on data from 350. - 403. K. See also Dykyj, 1970.; AC
43.8365.N/ANoyes, Noyes, et al., 1950Based on data from 350. - 403. K.; AC

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
40.7258.MEBroadway and Fraser, 1933Based on data from 253. - 265. K. See also Jones, 1960 and Stephenson and Malanowski, 1987.; AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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 = Acetylene + Iodine

By formula: C2H2I2 = C2H2 + I2

Quantity Value Units Method Reference Comment
Deltar83.3kJ/molEqkFuruyama, Golden, et al., 1968gas 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 as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

IE (eV) Method Reference Comment
8.92PEWittel, Bock, et al., 1974Vertical value; LLK
8.92PEBock and Wittel, 1972Vertical value; LLK

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, NIST Free Links, 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., 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]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

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]

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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