Synthesis and Characterisation of Nickel-, Cobalt- and Copper(II) Complexes of 1-Aroyl-4-arylthiosemicarbazides

Department of Chemistry, Karnatak University, Dharwad-580 003 Research Centre, Indian Petrochemicals CorporatiOn Ltmited, Baroda-391 346 Manuscript received 13 September 1993, revised 25 March 1994, accepted 12 April 1994 A series of complexes of the type M(L-H)OAc, [where M = NII, CoII, Cu11; OAc = CH3COO-; L = 1-salicyloyl-4-p-tolyl thiosemicarbazide (stotsc), 1-salicyloyl-4-p-chlorophenyl thiosemicarbazide (SClptsc), 1-isonicotinoyl-4-p-chlorophenyl thiosemicarbazide (inclptsc), 1-isonicotinoyl-4-p-tolyl thiosemicarbazide (intotsc), 1-benzoyl-4-p-chlorophenyl thiosemicarbazide (bclptsc) and 1-benzoyl-4-p-totyl thiosemicarbazide (btotsc)J and neutral complexes of NiII of the type Ni[L'-H]2 (where L' = inclptsc, intotsc, bclptsc and btotsc) have been prepared. The nature of bonding and the possible structures of the complexes are discussed