Studies on Coordination Compounds of Organotin(IV) with Schiff Bases of Amino Acids

The present paper describes the syntheses, characterization of some new coordination compounds of organotin(IV) with Schiffbases derived by condensation of heterocyclic ketones and amino acids, viz. glycine, β-alanine, α-valine, α-isoleucine and α-tryptophan. The newely prepared compounds have been characterized by elemental analysis, conductance measurements, molecular weight determinations, infrared and nuclear magnatic resonance (1H, 13C and 119Sn NMR) spectral studies. An trigonal bipyramidal geometry has been proposed for all of the complexes. A few representative ligands and their tin complexes have also been screened for their antibacterial activities and found to be quite active in this respect.