Some platinum (IV) complexes [Pt (L) 2Cl2][where, L= 2-aminopyridine-N-thiohydrazide (L1),(2-aminopyridine-N-thio)-1, 3-propanediamine (L2), benzaldehyde-2-aminopyridine-N- thiohydrazone (L3) and salicylaldehyde-2-aminopyrtidine-N-thiohydrazone (L4)] have been synthesized. The thiohydrazides, thiodiamine and thiohydrazones can exist as thione–thiol tautomer and coordinate as a bidentate N–S ligand. The ligands found to act in ...