Toxicological and pesticidal studies on novel bioactive sulfonamide imine organotin(IV) complexes

✍ Scribed by Mukta Jain; R. V. Singh

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 119 KB
• Volume: 17
• Category: Article
• ISSN: 0268-2605
• DOI: 10.1002/aoc.484

✦ Synopsis

Abstract

Toxicological, pesticidal and stereochemical aspects of organotin(IV) complexes with a sulfonamide imine ligand having an N^∩^N donor system are described with the support of elemental analysis, IR, UV, ^1^H NMR, ^13^C NMR and ^119^Sn NMR spectroscopy. The spectral data suggest that the ligand acts in a monobasic bidentate manner coordinating through the nitrogen atom. The complexes have been characterized on the basis of molecular weight determinations, conductivity measurements, and magnetic measurements. The isolated products are coloured solids, soluble in dimethylsulfoxide, dimethylformamide (DMF) and methanol. All the complexes are monomeric in nature, as indicated by their molecular weight determinations. Conductivity measurements in dry DMF show them to be non‐electrolytes. From the analyses of these studies the donor sites of the ligand are located and the geometries of the donor environment around the tin(IV) acceptor centres proposed. The ligand and its metal complexes are tested in vitro against a number of pathogenic fungal and bacterial strains and the findings are discussed. Emphasis has been given to the nematicidal properties. Copyright © 2003 John Wiley & Sons, Ltd.