The lecturer in the Department of Chemistry (M. Jahan Hamid Abdul-Amir) published a paper entitled (Mononuclear complexes Co (II), Ni (II), and Cu (II) with a ligand of type N2O2 derived from Ethyl 4-Aminobenzoate Co(II), Ni) II) and Cu(II) Mononuclear Complexes with N2O2 Ligand Derived from Ethyl 4-Aminobenzoate, in an international journal (Journal of Medicinal and Chemical Sciences) in Escobas containers. The results of the research were summarized through the condensation reaction between P-amino benzoic acid and ethanol in the presence of concentrated H2SO4 to produce ethyl 4-aminobenzoate, which was then converted to N, N – (1,2-phenylene) bis(4-aminobenzamide) from [H2L] or (N2O2) type by direct reaction between the two molecules of this product with one molecule of 1,2-benzene diamine, and a new series of complexes of some metals of Co(II), Ni(II) and Cu(II) were prepared. )) The ligands and their complexes prepared in solid state and solution were diagnosed using spectroscopic techniques such as UV-Vis, and FT.IR, 1HNMR, and elemental analyzes as well as melting temperatures, electrical conductivity, magnetic sensitivity, and molar ratio. The geometric shapes of the prepared complexes were suggested through the results obtained. Where the complexes of copper and cobalt were octahedral, while the complex of nickel was tetrahedral. After the incubation period at 37°C for 24 hours, the biological behavior of the prepared antibacterial complexes of Staphylococcus aureus and Escherichia coli at different concentrations (10, 50, and 200) ppm were examined. The results showed that the performance of the prepared compounds was better in resisting and reducing the growth of bacteria at high concentrations.
