Azibenzyl thermal decomposition products formation mechanism without solvent

In the present paper we propose a reaction mechanism which explains the for mation of the reaction products identified at the azibenzyl thermolysis. Th e main reaction product, diphenylketene is an unstable compound which gener ates a radical species with thermal stability. The diphenylketene resulted from azibenzyl decomposition is involved in subsequent processes. Final rea ction products in which disphenylketene is involved ha ve been identified u sing electronic and IR spectra.