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Benzene, 1,1',1'',1'''-(1,2-ethanediylidene)tetrakis-

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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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafgas85.4 ± 1.3kcal/molCcbBeckhaus, Dogan, et al., 1990 

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
Deltafsolid52.7 ± 0.8kcal/molCcbBeckhaus, Dogan, et al., 1990ALS
Quantity Value Units Method Reference Comment
Deltacsolid-3249.5 ± 0.8kcal/molCcbBeckhaus, Dogan, et al., 1990Corresponding «DELTA»fsolid = 52.7 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacsolid-3248.42 ± 0.31kcal/molCcbCoops, Mulder, et al., 1953Reanalyzed by Cox and Pilcher, 1970, Original value = -3249.3 ± 0.7 kcal/mol; See Coops, Mulder, et al., 1946; Corresponding «DELTA»fsolid = 51.63 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
95.51298.5Smith 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tfus485. ± 4.KAVGN/AAverage of 9 values; Individual data points
Quantity Value Units Method Reference Comment
Deltasub32.7kcal/molVBeckhaus, Dogan, et al., 1990ALS
Deltasub32.74kcal/molN/ABeckhaus, Dogan, et al., 1990DRB
Deltasub32.70 ± 0.69kcal/molGSBeckhaus, Dogan, et al., 1990AC

Enthalpy of sublimation

DeltasubH (kcal/mol) Temperature (K) Method Reference Comment
31.41 ± 0.50396.GSBeckhaus, Dogan, et al., 1990Based on data from 370. - 423. 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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Gas Phase Spectrum

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

Additional Data

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Owner NIST Standard Reference Data Program
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin NIST Mass Spectrometry Data Center
State gas
Instrument HP-GC/MS/IRD

This IR spectrum is from the NIST/EPA Gas-Phase Infrared Database .


Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, UV/Visible spectrum, References, Notes

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 Japan AIST/NIMC Database- Spectrum MS-IW-6954
NIST MS number 240878

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.


UV/Visible 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: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source Kortum and Dreesen, 1951
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 5762
Instrument 110C Fuess spectrograph, possible Zeiss spectrograph
Melting point 214.5
Boiling point 360

References

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

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

Beckhaus, Dogan, et al., 1990
Beckhaus, H.D.; Dogan, B.; Schaetzer, J.; Hellmann, S.; Ruchardt, C., Thermische stabilitat und bildungsenthalpie von 1,2,2,2- und 1,1,1,2- tetraphenylethan. - Die stabilisierungsenergien von benzhydryl- und triphenylmethyl-radikalen, Chem. Ber., 1990, 123, 137-144. [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]

Kortum and Dreesen, 1951
Kortum, G.; Dreesen, G., Uber die konstitutions-abhangigkeit der schwingungsstruktur im absoprtionsspektrum von aromatischen kohlenwasserstoffen, Chem. Ber., 1951, 84, 2, 182-203. [all data]


Notes

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