SYNTHESIS, PHYSICOCHEMICAL AND BIOLOGICAL STUDIES ON OXOVANADIUM(IV) DERIVATIVES OF MERCAPTOTRIAZOLES

Complexes of 3-methyl- or 3-ethyl-4-amino-5-thiolato-1,2,4-triazole (L H) and its Schiff base derivatives with oxovanadium(IV), of the types [VOL(2)(H2O)], [VOL'(2)(H2O)] and [VOL ''(H2O)(2)] (where L'H=Schiff b ases derived from condensation of LH with benzaldehyde, 2-chlorobenzal dehyde, 4-methoxybenzaldehyde or acetophenone; L '' H-2=Schiff bases d erived from condensation of LH with salicylaldehyde or o-hydroxyacetop henone) have been prepared and characterized by elemental analyses, el ectrical conductance, magnetic moments and spectral data. The thermal behaviour of selected complexes was investigated by t.g., d.t.g. and d .s.c. techniques. The antifungal and antiviral activities of the Schif f bases and their corresponding complexes were also investigated.