Antibacterial organotin(IV) compounds, their synthesis and spectral characterization

A series of of di- and triorganotin(IV) complexes of monoisopropyl and monomethyl maleate and monoisopropyl and triphenlymethyl glutarate have been synthesized and characterized by H-1- C-13- Sn-119-NMR, UV, IR and Mass spectrometry. The spectroscopic investigation demonstrated that the carboxylate group acts as a bidentate ligand in diorganotin(IV) and as a monodentate ligand in triorganotin(IV) compounds. Biological evaluation against various microorganisms indicate that the diorganotin(IV) complexes are slightly less reactive than triorganotin(IV) complexes.