Molecular addition complexes of organo-titanium(IV), -tin(IV) and -lead(IV) chlorides with dithiocarbazate schiff bases

Abstract

Reactions of organo-titanium(IV), -tin(IV) and -lead(IV) chlorides with dithiocarbazate schiff bases in 1:1 molar ratio yield to brown solid molecular addition complexes of the type R₂MCl₂ (Schiff base) and Ph₃MCI (schiff base). The structures of these adducts have been assigned based on elemental analyses, IR and ¹H NMR data. The former type of complexes have been found to have hexa-coordinated structures with bidentate N-S coordination, whereas the latter type possess penta-coordination with nitrogen coordinated schiff base. The PhSnCl₃ (schiff base) adducts have been found to belong to the former class.