Synthesis, Characterization and Antimicrobial Studies on Some Salicylidene-sulphamethoxazole Schiff Base Tellurium (IV) Complexes

A bidentate Schiff base Salicylidene-sulphamethoxazole synthesized from sulphamethoxazole and salicyladehyde, form stable complexes with organyltellurium(IV) trichlorides and diorganryltellurium(IV) dichlorides of the type Sal-SMZ. RTeCl2 and Sal-SMZ. R2TeCl (where R = 4-methoxyphenyl, 4-ethoxyphenyl, 4-hydroxyphenyl and 3-methyl-4-hydroxyphenyl and Sal-SMZ = Schiff base). Their structures were investigated by elemental analyses, molar conductance, FT-IR and H-1 NMR spectroscopy. The spectral studies predict the coordination sites as phenolic oxygen of Schiff base after deprotonation and nitrogen of the azomethine group, thus giving pentacoordinated tellurium(IV) complexes. The complexes have also been screened for their antifungal and antibacterial activities.