1,2,4,5-Benzenetetracarboxylic acid, tetramethyl ester
- Formula: C14H14O8
- Molecular weight: 310.2562
- IUPAC Standard InChI: InChI=1S/C14H14O8/c1-19-11(15)7-5-9(13(17)21-3)10(14(18)22-4)6-8(7)12(16)20-2/h5-6H,1-4H3
- IUPAC Standard InChIKey: QVEIFJBUBJUUMB-UHFFFAOYSA-N
- CAS Registry Number: 635-10-9
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Pyromellitic acid tetramethyl ester; Tetramethyl pyromellitate; Tetramethyl 1,2,4,5-benzenetetracarboxylate; Tetramethyl benzene-1,2,4,5-tetracarboxylate
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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 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 |
|---|---|---|---|---|---|
| ΔfH°gas | -325.36 | kcal/mol | N/A | Dibrivnyi and Donchak, 1982 | Value computed using ΔfHsolid° value of -1440.3±2.4 kj/mol from Dibrivnyi and Donchak, 1982 and ΔsubH° value of 79.0 kj/mol from Van Chin, Dibrivnyi, et al., 1980.; DRB |
| ΔfH°gas | -323.1 ± 3.8 | kcal/mol | Ccb | Van Chin, Dibrivnyi, et al., 1980 | Heat of combustion is not reported; ALS |
| ΔfH°gas | -323.42 | kcal/mol | N/A | Colomina, Laynez, et al., 1972 | Value computed using ΔfHsolid° value of -1432.2±1.2 kj/mol from Colomina, Laynez, et al., 1972 and ΔsubH° value of 79.0 kj/mol from Van Chin, Dibrivnyi, et al., 1980.; DRB |
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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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 |
Gas Chromatography
Go To: Top, Gas phase thermochemistry 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
Kovats' RI, non-polar column, isothermal
| Column type | Active phase | Temperature (C) | I | Reference | Comment |
|---|---|---|---|---|---|
| Packed | OV-1 | 200. | 2095. | Fedoreev and Maksimov, 1977 | Gaschrom; Column length: 1.5 m |
References
Go To: Top, Gas phase thermochemistry data, IR Spectrum, Gas Chromatography, 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]
Fedoreev and Maksimov, 1977
Fedoreev, S.A.; Maksimov, O.B.,
The study of the composition of aromatic esters by gas-liquid chromatography,
Solid Fuel Chem. (Engl. Transl.), 1977, 17-22. [all data]
Notes
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- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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