Succinamic acids. Part I. Hydrogen-bonding equilibria in succinanilic acids

Abstract

Spectroscopic evidence shows that N-alkylsuccinanilic acids form two types of hydrogen bonded associates. The usual cyclic dimeric acid is in equilibrium with polymeric associates which become more significant at high concentrations of the acid. The presence of an intramolecularly hydrogen-bonded monomeric acid could not be detected either by spectroscopic means or by abnormal heats of association of the acids.