Molecular Adducts of Tin(II) Hromide and Isothiocyanate with Aromatic Schief Bases

Abstract

A wide range of molecular adducts of tin(II) bromide and isothiocyanate with salicylideneanilines and anisalideneanilines, having different substituents in the aniline fragment, have been synthesized. The molecular adducts of 1:2 stoichiometry are characterized by elemental analysis, UV and IR spectroscopy. The comparison of the IR spectra of the Ligand with those of the corresponding adducts shows a positive shift of the (C=N) absorption on comolexation, which clearly indicates that the bases act as neutral monodentate ligands coordinating only through their azornethine nitrogen atom. The hydroxyl group is not involved in the coordination. The antimicrobial activity of some compounds were also evaluated against five fungi and five bacteria. Some of these compounds were found to possess marked antimicrobial activity.