Synthesis and Spectroscopic Characterization of Organotin(IV) Complexes Containing Schiff Bases

Abstract

Reactions of n-Bu2SnCl2 with sodium salts of Schiff bases in different molar ratio in tetrahydrofuran-benzene solution afforded complexes of the types [(n-Bu)2Sn(sb)Cl] and [(n-Bu)2Sn(sb)2], respectively, [where sb= Schiff bases: salicylidene-1-aminobenzene (sabH), salicylidene-3-nitro-1-aminobenzene (snabH), and salicylidene-2-amino-4-picoline(sapicH)]. All these coloured solid complexes are soluble in common organic solvents and were characterized by elemental (C, H, N, Cl and Sn) analysis and spectral [IR, (1H, 13C and 119Sn) NMR] and mass studies. On the basis of spectroscopic studies plausible structures have been proposed tentatively.