Antimicrobial activities of some transition metal complexes of the 2,6-diacetyl pyridine schiff base of S,S-dimethyldithiocarbazate

New pentadentate Schiff base ligand of S,S-dimethyldithiocarbazate was prepared after condensing with 2,6-diacetyl Pyridine and its Ni[II], Cu[II], Zn[II] complexes were obtained while reacted with corresponding metal salts. The ligand and its metal complexes were screened for antimicrobial activity against plant microbes' viz. Aspergillus sp., Fusarium solani, Penicillium sp., Verticillum sp. and Rhizobium sp. Observed action was good to moderate against Aspergillus sp., F. solani, Penicillium sp. and Verticillum sp. while for Rhizobium sp. it was negative or minute. Metal chelation increased the inhibitory competence of the ligand in most of the cases