Preparation and characterization of complexes of uranium(VI), vanadium(IV), titanium(IV), zirconium(IV) and hafnium(IV) with mercapto triazoles

Complexes of UO2(VI), VO(VI), Tio(IV), ZrO(IV) and HfO(IV) with 4-amino-5-mercapto-3-trifluoromethyl-1,2,4-triazole (HAFT), 4-benzylidene-amino-5-mercapto-3-trifluoromethyl-1,2,4-triazole (HBFT) and 4-salicylidene-amino-5-mercapto-3-trifluoromethyl-1,2,3,-triazole (H2SFT) have been prepared and characterized on the basis of elemental analysis, electrical conductance, magnetic susceptibility and spectral (electronic and infrared) data. The ligands HAFT and HBFT act as NS- bidentate chelating agents whereas H2SFT acts as NS-O- tridentate chelating agent. (author)