No abstract

The results obtained in the investigation of the dissociation constants of carboxylic acids of known geometry and free from the complicating features of pi electron interactions and steric effects have established that the magnitude of the polar effect does not depend on either the number or the nature of the atoms between the substituent and the reaction site, nor do such substituent contributions depend on the number of paths available for their propagation.

No abstract

A new method for the definition of the larger aromatic structural elements in high-rank coals has been developed. The procedure involves the oxidative decomposition of the coal with oxygen in basic solution and the subsequent decarboxylation of the aromatic carboxylic acids to yield a mixture of aromatic compounds that can readily be analyzed by conventional methods. This approach has been tested with pure compounds and applied to Pocahontas No. 3 coal.