Synthesis, characterization and thermal studies of some new organotin (IV) complexes with aniline N-thiohydrazide and benzaldehyde aniline N-thiohydrazone

The complexes of parachlorotribenzyltin (IV) chloride and parachlorodibenzyl tin (IV) dichloride with aniline N-thiohydrazide (L 1 ), and benzaldehyde aniline N-thiohydrazone (L 2 ) have been synthesized. The complexes havebeen characterized by elemental analysis and spectral (UV-VIS, IR & NMR) studies. Ligand in the complexes acts as bidentate and coordination takes place through sulphur and terminal nitrogen. These are 1:1 metal ligand complexes. Various thermodynamic parameters have been calculated for the decomposition steps using TG-DTA curves. Activity of all the complexes Vs. Rhizoctonia bataticola fungal strain have been studied and the general order of activity have been deduced.