Nickel complexes of Schiff bases derived from mono/diketone with anthranilic acid: Synthesis, characterization and microbial evaluation

The nickel(II) complexes of the dibasic tridentate Schiff bases viz. Sal-AnthraH2, HNP-AnthraH2, HAP-AnthraH2, HPP-AnthraH2, Acac-AnthraH2, Etac-AnthraH2, and Bzac-AnthraH2, have been synthesized and characterized by IR, 1H NMR, mass and electronic spectra, and magnetic and conductance studies. On the basis of analytical data, four-coordinate geometry was proposed for the prepared nickel(II) complexes. The complexes have been found to possess 1:1 stoichiometry. The bio-efficacy of the prepared complexes has been examined against the growth of bacteria and fungi in vitro to evaluate their antimicrobial potential.