IR-spectral study of self-association effects of 2-aminopyridine in solution

A comparative IR-spectral study of solute-solute hydrogen bond formation in carbon tetrachloride and chloroform solutions of 2-amino-pyridine is repor ted. The presence of chain-like self-associates is confirmed in contrast to the solid state where the stabilization of the cyclic dimeric structure ta kes place. This conclusion is suggested on the basis of the NH2 stretching region data obtained by changing the solute concentration as well as by com paring with the corresponding data about melted and solid state 2-aminopyri dine and 3-aminopyridine samples.