现代化学与应用

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Chemical Preparation, Spectro-Magnetic and Biocidal Studies on Some Divalent Transition Metal Complexes of Schiff’s Base Derived from 1-Phenyl-2-(Pyridin-2-yl)ethane-1,2-dione and Ethylenediamine

Ali Mohammed Yimer

The tetra-dentate Schiff’s base ligand, N, N-di(pyridin-2-ylbenzenoylmethylene)ethylenediamine and its complexes of divalent transition metals like Ni(II), Co(II), Cu(II) and Zn(II) were investigated in terms of synthesis, elemental analysis, molar conductivity, infrared spectra, ultraviolet-visible(electronic spectra) and magnetic susceptibility measurements. The ligands have been synthesized by condensation of 1-phenyl-2-(pyridin-2-yl) ethane-1, 2-dione and ethylenediamine. Each divalent transition metal complexes possess eight coordinate octahedral geometrical structures. Bactericidal and fungicidal activities of the compounds were evaluated in vitro by disc diffusion method. Antimicrobial studies conducted on two bacteria and two fungi revealed higher antimicrobial activities by complexes than the Schiff base ligand against all the microbes used.