Some tribenzyl tin(IV) complexes with thiohydrazides and thiodiamines. Synthesis, characterization and thermal studies

Tribenzyl tin(IV) chloride complexes of morpholine N-thiohydrazide (L-1), a niline-N-thiohydrazide (L-2), N-(morpholine-N-thio)-1,3-propanediamine (L-3 ) and (aniline-N-thio)-1,3-propanediamine (L-4) of the type (C6H5CH2)(3)Sn( L)Cl (where L=L-1, L-2, L-3 and L-4) have been synthesised in dioxane and i n H2O and acetone mixture. These were characterized by C,H,N-analysis, UV, IR and (HNMR)-H-1 spectral studies. In both the complexes ligands act as bi dentate, coordinating through sulphur and terminal nitrogen. The complexes are 1:1 metal ligand complexes. Various thermodynamic parameters have been calculated for the decomposition steps using TG/DTA curves in air as well a s nitrogen atmosphere.