1,1'-Biphenyl, 4,4'-difluoro-

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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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
DH - Eugene S. Domalski and Elizabeth D. Hearing
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Tboil527.7KN/AWeast and Grasselli, 1989BS
Quantity Value Units Method Reference Comment
Tfus363.1KN/ASangster and Irvine, 1956Uncertainty assigned by TRC = 2. K; TRC
Quantity Value Units Method Reference Comment
Δsub91.2 ± 4.2kJ/molVSmith, Gorin, et al., 1964Corrected for CODATA value of ΔfH; ALS

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Reference Comment
91.200298.15Saito, Atake, et al., 1986p = 0.5092 Pa, data from 64SMI/GOR.; DH

Entropy of vaporization

ΔvapS (J/mol*K) Temperature (K) Reference Comment
305.298.15Saito, Atake, et al., 1986p; DH

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:


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
8.00 ± 0.02PEMaier and Turner, 1972LLK

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.

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Sangster and Irvine, 1956
Sangster, R.C.; Irvine, J.W., Study of Organic Scintillators, J. Chem. Phys., 1956, 24, 670. [all data]

Smith, Gorin, et al., 1964
Smith, N.K.; Gorin, G.; Good, W.D.; McCullough, J.P., The heats of combustion, sublimation, and formation of four dihalobiphenyls, J. Phys. Chem., 1964, 68, 940-946. [all data]

Saito, Atake, et al., 1986
Saito, K.; Atake, T.; Chihara, H., Thermodynamic studies of p-polyphenyls: heat capacity of 4,4'-difluorobiphenyl, J. Chem. Thermodynam., 1986, 18, 407-414. [all data]

Maier and Turner, 1972
Maier, J.P.; Turner, D.W., Steric inhibition of resonance studied by molecular photoelectron spectroscopy. Part I. Biphenyls, Faraday Discuss. Chem. Soc., 1972, 54, 149. [all data]


Notes

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