Jump to main content
Jump to site search

Issue 9, 2004
Previous Article Next Article

Thermochemistry of biphenylcarboxylic and dicarboxylic acids. A combined experimental and theoretical study

Author affiliations

Abstract

The standard molar enthalpies of combustion and sublimation of 2- and 4-biphenylcarboxylic acid, 2,2′- and 4,4′-biphenyldicarboxylic acid were measured and the gas-phase enthalpies of formation, at T = 298.15 K, were determined. Ab initio calculations were performed and a theoretical study on molecular structure of all the biphenyl acid isomers has been carried out. Calculated enthalpies of formation using appropriate isodesmic reactions are compared with experimental values, and a good agreement is observed. Estimates of enthalpies of formation for the isomers, which were not studied experimentally, are presented. All the acids containing at least one ortho COOH are comparatively less stable than their isomers having just meta or para COOH group(s).

Graphical abstract: Thermochemistry of biphenylcarboxylic and dicarboxylic acids. A combined experimental and theoretical study

Back to tab navigation

Article information


Submitted
03 Feb 2004
Accepted
05 Mar 2004
First published
29 Mar 2004

Org. Biomol. Chem., 2004,2, 1353-1358
Article type
Paper

Thermochemistry of biphenylcarboxylic and dicarboxylic acids. A combined experimental and theoretical study

M. A. R. Matos, M. S. Miranda, D. V. S. S. Martins, N. A. B. Pinto, V. M. F. Morais and J. F. Liebman, Org. Biomol. Chem., 2004, 2, 1353
DOI: 10.1039/B401605J

Social activity

Search articles by author

Spotlight

Advertisements