Abstract

B. K. Rai¹*, S. N. Vidyarthi¹, Amit¹, Rabindra Singh¹, Nitish Bhardwaj¹ and Aninash Ojha²

The divalent metal complexes of cobalt, nickel and copper have been prepared with bidentate Schiff base derived by condensing 6-methyl-2-phenyl (4H) chromen-4-one and semicarbazide hydrochloride. The complexes obtained were characterized on the basis of their elemental analysis, I.R., electronic spectra, magnetic susceptibility, molar conductance data. The IR spectral data revealed that Schiff base, 6-methyl-2-phenyl (4H) chromen-4-semicarbazone (MPCS) behave as bidentate ligands and coordinated to Co(II), Ni(II) and Cu(II) via azomethine nitrogen and carbonyl oxygen of semicarbazone moiety of the ligand. MPCS and remaining coordination centre of metal ion are satisfied by anions such as Cl-, Br-, I- and NO₃-. On the basis of molar conductance data complexes are proposed non-electrolytic in nature. On the basis of physicochemical and spectroscopic studies, the structure of the Co(II), Ni(II) and Cu(II) complexes was proposed octahedral in nature. All the synthesized ligand and complexes have been screened for antimicrobial activity.

Co(II); Ni(II) and Cu(II)/ Schiff; base/ MPCS/ Antimicrobial study

[ View HTML Full Text]