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Benzene, 1,1'-ethylidenebis-

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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
Deltacliquid-7259.kJ/molCcbSerijan and Wise, 1951Corresponding «DELTA»fliquid = -250. kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-7562.2kJ/molCcbWise, Serijan, et al., 1951Corresponding «DELTA»fliquid = 52.3 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
Deltacsolid-7558.6 ± 2.0kJ/molCcbCoops, Mulder, et al., 1953Reanalyzed by Cox and Pilcher, 1970, Original value = -7558. ± 2. kJ/mol; See Coops, Mulder, et al., 1946; Corresponding «DELTA»fsolid = 48.7 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
295.0298.5Smith and Andrews, 1931T = 102 to 299 K. Value is unsmoothed experimental datum.; DH

Phase change data

Go To: Top, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), References, Notes

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, Kenneth Kroenlein director
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil543. ± 5.KAVGN/AAverage of 13 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus255.14KN/ASerijan and Wise, 1951, 2Uncertainty assigned by TRC = 0.2 K; TRC
Tfus255.14KN/AWise, Serijan, et al., 1950Uncertainty assigned by TRC = 0.2 K; TRC
Tfus247.25KN/ASmith and Andrews, 1931, 2Uncertainty assigned by TRC = 0.25 K; TRC
Quantity Value Units Method Reference Comment
Deltavap68.9 ± 0.6kJ/molGSVerevkin, 1999Based on data from 293. - 328. K.; AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
68.2 ± 0.6313.GSVerevkin, 1999Based on data from 293. - 328. K.; AC
62.4363.AStephenson and Malanowski, 1987Based on data from 348. - 405. K.; 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:


IR Spectrum

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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: Coblentz Society, Inc.

Condensed Phase Spectrum

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IR spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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Owner COBLENTZ SOCIETY
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin DOW CHEMICAL COMPANY
Source reference COBLENTZ NO. 10132
Date 1961/03/08
Name(s) (1-phenylethyl)benzene
State SOLUTION (10% IN CCl4 FOR 3800-1333, 10% IN CS2 FOR 1333-450 CM-1)
Instrument DOW KBr FOREPRISM-GRATING
Instrument parameters BLAZED AT 3.5, 12.0, 20.0 MICRON, CHANGED AT 5.0, 7.5, 14.9 MICRON
Path length 0.012, 0.012 CM
SPECTRAL CONTAMINATION DUE TO CCl4 AROUND 1550, AND CS2 AROUND 855 CM-1
Resolution 4
Sampling procedure TRANSMISSION
Data processing DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS)

This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.


Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin D.HENNEBERG, MAX-PLANCK INSTITUTE, MULHEIM, WEST GERMANY
NIST MS number 60991

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


References

Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Notes

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

Serijan and Wise, 1951
Serijan, K.T.; Wise, P.H., Dicyclic hydrocarbons. III. Diphenyl- and dicyclohexylalkanes through C15, J. Am. Chem. Soc., 1951, 73, 4766-4769. [all data]

Wise, Serijan, et al., 1951
Wise, C.H.; Serijan, K.T.; Goodman, I.A., NACA Technical Report 1003, NACA Technical Report 1003, 1951, 1-10. [all data]

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]

Serijan and Wise, 1951, 2
Serijan, K.T.; Wise, P.H., Dicylic Hydrocarbons. III. Diphenyl- and Dicyclohexylalkanes through C15, J. Am. Chem. Soc., 1951, 73, 4766. [all data]

Wise, Serijan, et al., 1950
Wise, P.H.; Serijan, K.T.; Goodman, I.A., Correlation of Physical Properties with Molecular Structre for Dicyclic Hydrocarbons. I. 2-n-Alakylbiphenyl-1,1-alkane, «alpha»,«omega»-dicyclohexylalkane Series, Nat. Advis. Comm. Aeronaut., Tech. Notes, No. 2081, Lewis Flight Propulsion Lab., Cleveland, OH, 1950. [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]

Verevkin, 1999
Verevkin, Sergey P., Thermochemical Properties of Diphenylalkanes, J. Chem. Eng. Data, 1999, 44, 2, 175-179, https://doi.org/10.1021/je980200e . [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]


Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References