Synthesis and structural characterization of diorganotin(IV) esters with pyruvic acid isonicotinyl hydrazone and pyruvic acid salicylhydrazone Schiff bases

Eight diorganotin esters of Schiff base ligand formulated as [R2SnLY]2, where L1 is 4-NC5H4-C(O)N2C(CH3)CO2 with Y = H2O, R = Ph (1), PhCH2 (2), m-Cl-PhCH2 (3), and L2 is 2-HOC6H4-C(O)N2C(CH3)CO2 with Y = CH3OH, R = PhCH2 (4), o-Cl-PhCH2 (5), m-Cl-PhCH2 (6), o-F-PhCH2 (7), p-F-PhCH2 (8) have been prepared and characterized by elemental analysis, IR, 1H and 119Sn NMR spectra. The crystal structures of compounds 1, 2 and 4 have been determined by X-ray single crystal diffraction.