SYNTHETIC, SPECTROSCOPIC AND APPLIED ASPECTS OF SOME OF THE ORGANOSILICON(IV) AND ORGAN0 TIN(IV) COMPLEXES

Abstract

Series of new trigonal bipyramidal and octahedral complexes of silicon(IV) and tin(IV) have been synthesized by the reactions of triphenylsilicon(IV) and triphenyltin(IV)chlorides with biologically potent bases derived by the condensation of heterocyclic ketones with thiosemicarbazide. Their geometries have been established on the basis of U.V., IR, ¹H, ²⁹Si and ¹¹⁹Sn NMR spectral studies. The geometries of the compounds have been proposed on the basis of X-ray powder diffraction. All the bases and their metal complexes screened against several pathogenic fungal and bacterial strains. To compare the biopotency of these complexes, bases and their complexes were also tested for fungicidal properties on the brinjal plant.

Key Words:

• Silicon(IV) and tin(IV) complexes
• thio-ligands
• spectral studies
• X-ray powder diffraction
• biological screening
• brinjal plant