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1,2,4,5-Benzenetetracarboxylic acid, tetramethyl ester

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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafgas-1361.3kJ/molN/ADibrivnyi and Donchak, 1982Value computed using «DELTA»fHsolid° value of -1440.3±2.4 kj/mol from Dibrivnyi and Donchak, 1982 and «DELTA»subH° value of 79.0 kj/mol from Van Chin, Dibrivnyi, et al., 1980.; DRB
Deltafgas-1352. ± 16.kJ/molCcbVan Chin, Dibrivnyi, et al., 1980Heat of combustion is not reported; ALS
Deltafgas-1353.2kJ/molN/AColomina, Laynez, et al., 1972Value computed using «DELTA»fHsolid° value of -1432.2±1.2 kj/mol from Colomina, Laynez, et al., 1972 and «DELTA»subH° value of 79.0 kj/mol from Van Chin, Dibrivnyi, et al., 1980.; DRB

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafsolid-1440.3 ± 2.4kJ/molCcbDibrivnyi and Donchak, 1982see Van-Chin-Syan, Dibrivnyi, et al., 1981
Deltafsolid-1431.0 ± 2.4kJ/molCcbVan Chin, Dibrivnyi, et al., 1980Heat of combustion is not reported
Deltafsolid-1432.2 ± 1.2kJ/molCcbColomina, Laynez, et al., 1972 
Quantity Value Units Method Reference Comment
Deltacsolid-6069.1 ± 2.4kJ/molCcbDibrivnyi and Donchak, 1982see Van-Chin-Syan, Dibrivnyi, et al., 1981; Corresponding «DELTA»fsolid = -1440.9 kJ/mol (simple calculation by NIST; no Washburn corrections)
Deltacsolid-6077.60 ± 0.91kJ/molCcbColomina, Laynez, et al., 1972Corresponding «DELTA»fsolid = -1432.35 kJ/mol (simple calculation by NIST; no Washburn corrections)

Phase change data

Go To: Top, Gas phase thermochemistry data, 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, Chris Muzny, director
AC - William E. Acree, Jr., James S. Chickos
DRB - Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Tfus418.0KN/ADozen, Fujishima, et al., 1978Uncertainty assigned by TRC = 0.1 K; TRC
Quantity Value Units Method Reference Comment
Deltasub143.3 ± 0.8kJ/molN/AJimenez, Menendez, et al., 1995AC
Deltasub79.0kJ/molN/AVan Chin, Dibrivnyi, et al., 1980DRB
Deltasub135.9 ± 1.3kJ/molN/ATurrión, 1967See also Jimenez, Menendez, et al., 1995.; AC

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
140.4 ± 0.8381.MEJimenez, Menendez, et al., 1995Based on data from 371. - 391. K.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Method Reference Comment
35.7416.7DSCAcree, 1993AC

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

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, 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 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 SRD/NIST
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin EPA-IR VAPOR PHASE LIBRARY
State gas

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, 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

View image of digitized spectrum (can be printed in landscape orientation).

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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 NIST Mass Spectrometry Data Center, 1994
NIST MS number 135910

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, Gas phase thermochemistry data, 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.

Dibrivnyi and Donchak, 1982
Dibrivnyi, V.N.; Donchak, V.A., Standard enthalpies of formation of some pyromellitic acid esters, Deposited Document, SPSTL 1014 Khp-D80. Chem. Abst. 97:134437j, 1982, 19-23. [all data]

Van Chin, Dibrivnyi, et al., 1980
Van Chin, S.; Dibrivnyi, N.V.; Donchak, V.A., Peroxide bond energy in tetra-tert-butyl peroxypyromellitate, Vestn. L'vov. Politekhn. In-ta, 1980, 18-21. [all data]

Colomina, Laynez, et al., 1972
Colomina, M.; Laynez, J.L.; Perez-Ossorio, R.; Turrion, C., Enthalpies of combustion and formation of six methyl esters of benzene carboxylic acids, J. Chem. Thermodyn., 1972, 4, 499-506. [all data]

Van-Chin-Syan, Dibrivnyi, et al., 1981
Van-Chin-Syan, Y.; Dibrivnyi, V.N.; Donchak, V.A.; Chuchmarev, S.K., Standard enthalpies of combustion and formation of pyromellitic esters, Russ. J. Phys. Chem. (Engl. Transl.), 1981, 55, 747. [all data]

Dozen, Fujishima, et al., 1978
Dozen, Y.; Fujishima, S.; Shingu, H., Structures and fusion parameters of methoxycarbonyl-benzenes and -naphthalenes, Thermochim. Acta, 1978, 25, 2, 209, https://doi.org/10.1016/0040-6031(78)85008-4 . [all data]

Jimenez, Menendez, et al., 1995
Jimenez, P.; Menendez, V.; Roux, M.V.; Turrion, C., Vapour pressures and enthalpies of sublimation of four polymethoxycarbonylbenzenes, J. Chem. Thermodyn., 1995, 27, 679-683. [all data]

Turrión, 1967
Turrión, C., , Presiones de vapor y calores de sublimación de los ácidos bencenecarboxilicos y sus ésteres metilicos. Beca "Juan March" de estudios en España, grupo B, Madrid, 1967. [all data]

Acree, 1993
Acree, William E., Thermodynamic properties of organic compounds, Thermochimica Acta, 1993, 219, 97-104, https://doi.org/10.1016/0040-6031(93)80486-T . [all data]


Notes

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