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Ethanedione, diphenyl-

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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: Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
gas480.18J/mol*KN/ADworkin A., 1983The value of 428.1 J/mol*K was obtained for the third-law entropy value at 298.15 K if other enthalpy of sublimation of benzil was used. However, statistical values of S(298.15 K) calculated by author [ Dworkin A., 1983] for different molecular models (382.3 and 405.3 J/mol*K) are considerably less than the calorimetric values.

Condensed 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafsolid-154.0kJ/molCcbParks and Mosher, 1962ALS
Deltafsolid-179.kJ/molCcbSpringall and White, 1954ALS
Deltafsolid138.kJ/molCcbLandrieu, 1906ALS
Quantity Value Units Method Reference Comment
Deltacsolid-6784. ± 3.kJ/molCcbParks and Mosher, 1962Corresponding «DELTA»fsolid = -153.9 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacsolid-6760. ± 3.kJ/molCcbSpringall and White, 1954Corresponding «DELTA»fsolid = -179. kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacsolid-6784.8kJ/molCcbBarker, 1925Author was aware that data differs from previously reported values; Corresponding «DELTA»fsolid = -154. kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacsolid-6828.7kJ/molCcbLandrieu, 1906Corresponding «DELTA»fsolid = -110. kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
solid,1 bar292.08J/mol*KN/ADworkin A., 1983DH

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
245.7298.15Dworkin A., 1983T = 15 to 300 K.; DH

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Dworkin A., 1983
Dworkin A., Heat capacity, phase transition, and thermodynamic properties of benzil, J. Chem. Thermodyn., 1983, 15, 1029-1035. [all data]

Parks and Mosher, 1962
Parks, G.S.; Mosher, H.P., Heats of combustion and formation of seven organic compounds containing oxygen, J. Chem. Phys., 1962, 37, 919-920. [all data]

Springall and White, 1954
Springall, H.D.; White, T.R., Heats of combustion and molecular structure. Part II. The mean bond energy term for the carbonyl system in certain ketones, J. Chem. Soc., 1954, 2765-27. [all data]

Landrieu, 1906
Landrieu, M.Ph., Thermochimie des hydrazones et des osazones, des dicetones-«alpha» et des sucres reducteurs, Compt. Rend., 1906, 140, 580-582. [all data]

Barker, 1925
Barker, M.F., Calorific value and constitution, J. Phys. Chem., 1925, 29, 1345-1363. [all data]


Notes

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