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Selenophene


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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltavap9.1 ± 0.2kcal/molCVoronkov, Klyuchnikov, et al., 1989AC

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Reference Comment
9.75272.Dykyj, Svoboda, et al., 1999Based on data from 234. - 300. K.; AC
8.13249.Stull, 1947Based on data from 234. - 387. K.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
234. - 387.53.754051331.417-33.354Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

DeltasubH (kcal/mol) Temperature (K) Reference Comment
11.3225.Milazzo and Paoloni, 1951Based on data from 208. - 243. K.; AC

Enthalpy of phase transition

DeltaHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.0727122.7crystaline, IIIcrystaline, IIDworkin and Szwarc, 1991DH
0.2643192.8crystaline, IIcrystaline, IDworkin and Szwarc, 1991DH
1.096240.2crystaline, IliquidDworkin and Szwarc, 1991DH
0.168125.54crystaline, I3crystaline, I2Dworkin and Szwarc, 1991Metastable phase.; DH
0.2397155.4crystaline, I2crystaline, I1Dworkin and Szwarc, 1991Metastable phase.; DH

Entropy of phase transition

DeltaStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
0.593122.7crystaline, IIIcrystaline, IIDworkin and Szwarc, 1991DH
1.37192.8crystaline, IIcrystaline, IDworkin and Szwarc, 1991DH
4.57240.2crystaline, IliquidDworkin and Szwarc, 1991DH
1.34125.54crystaline, I3crystaline, I2Dworkin and Szwarc, 1991Metastable; DH
1.54155.4crystaline, I2crystaline, I1Dworkin and Szwarc, 1991Metastable; DH

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.

Voronkov, Klyuchnikov, et al., 1989
Voronkov, M.G.; Klyuchnikov, V.A.; Kolabin, S.N.; Shvets, G.N.; Varushin, P.I.; Deryagina, E.N.; Korchevin, N.A.; Tsvetnitskaya, S.I., Thermochemical properties of dialkyl chalcogenides and dichalcogenides RMnR (M = sulfur, selenium, tellurium; n = 1, 2), Dokl. Akad. Nauk SSSR, Phys. Chem., 1989, 307, 5, 1139. [all data]

Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R., Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Milazzo and Paoloni, 1951
Milazzo, G.; Paoloni, L., Ann. Chim. (Rome), 1951, 41, 673. [all data]

Dworkin and Szwarc, 1991
Dworkin, A.; Szwarc, H., Thermodynamic evidence for stable and metastable phases in crystalline selenophene, C. R. l'Academie Sci., Ser. II Univers, 1991, 312(7), 701-704. [all data]


Notes

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