Synthesis and Characterization of Thorium(IV) Complexes with Salicylaldehyde N(4)-Phenylthiosemicarbazone

Abstract

Some thorium(IV) complexes with salicylaldehyde N (4)-phenylthiosemicarbazone (SPT) were synthesized and characterized. The compositions of the complexes were ascertained from elemental analysis, molar conductivity measurements and spectral investigations to be [ThL₂X_n] (X = NO₃^–, NCS^–, ClO₄^–,CH₃COO^– or CH₃ CHOHCOO^–, n = 2 and X = SO₄^2-, C₂O₄^2-, n = 1 and L = salicylaldehyde N (4)-phenylthiosemicarbazone). Thermal studies were conducted on two representative complexes. The ligands along with a few complexes were screened for their antifungal activity against Fusarium oxysporum which causes wilt in tomato.