SYNTHESIS, CHARACTERIZATION AND BIOCIDAL EFFECTS OF TRIORGANOLEAD(IV) COMPLEXES DERIVED FROM THIO-LIGANDS

Abstract

The substitution reactions of heterocyclic thiosemicarbazones with triphenyllead(IV) chloride in 1:1 molar ratio give Ph₃PbL (L = anion of thiosemicarbazone derived from heterocyclic aldehyde or ketone) type of complexes. The elemental analyses, molecular weight determinations, conductivity measurements and spectral (IR, ¹H and ¹³C NMR) studies have been used to elucidate their penta-coordinated structures. Some representative ligands and their metal chelates have also been screened for their antimicrobial effects against different species of pathogenic fungi and bacteria.

Key Words:

• Triphenyllead(IV) complexes
• Thiosemicarbazones
• spectral studies
• antimicrobial studies.