Pentaphenylethane

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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
Δcsolid-3988.84 ± 0.72kcal/molCcbCoops, Mulder, et al., 1953Reanalyzed by Cox and Pilcher, 1970, Original value = -3988.5 ± 0.7 kcal/mol; See Coops, Mulder, et al., 1946; Corresponding Δfsolid = 91.11 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
113.2298.5Smith and Andrews, 1931T = 102 to 346 K. Value is unsmoothed experimental datum.; DH

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 by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Quantity Value Units Method Reference Comment
Tfus446.4KN/ASmith and Andrews, 1931, 2Uncertainty assigned by TRC = 0.4 K; melt. pt. with Hg thermometer

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:


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.

Coops, Mulder, et al., 1953
Coops, J.; Mulder, D.; Dienske, J.W.; Smittenberg, J., Thermochemical investigations on arylethanes I. Heats of combustion of phenylethanes., Rec. Trav. Chim. Pays/Bas, 1953, 72, 785. [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]

Coops, Mulder, et al., 1946
Coops, J.; Mulder, D.; Dienske, J.W.; Smittenberg, J., The heats of combustion of a number of hydrocarbons, Rec. Trav. Chim. Pays/Bas, 1946, 65, 128. [all data]

Smith and Andrews, 1931
Smith, R.H.; Andrews, D.H., Thermal energy studies. I. Phenyl derivatives of methane, ethane and some related compounds. J. Am. Chem. Soc., 1931, 53, 3644-3660. [all data]

Smith and Andrews, 1931, 2
Smith, R.H.; Andrews, D.H., Thermal Energy Studies I. Phenyl Derivatives of Methane, Ethane and Some Related Compounds, J. Am. Chem. Soc., 1931, 53, 3644. [all data]


Notes

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