Ionic [Pd(LH)(2)(ClO4)(2)] and neutral (PdL2) complexes of Pd(II) with hetarylamines derived from dipyridylamine and benz[c,d]indolylamine were synthesized. The H-1 NMR, IR, and UV spectra of the products were studied. Irradiation of neutral Pd(II) complexes with N-derivatives of benz[c,d]indolylamine results in ligand elimination. Photolysis of a neutral Pd(II) complex with 3,5-dichloro-2,2 ' -dipyridylamine in solution results in ligand cyclization to give 8-chlorodipyrido[1,2-a:2 ' ,3 ' -d]imidazole.