Synthesis, Characterization, Theoretical And Antimicrobial Evaluation Of New Co(Ii) , Ni(Ii) And Cu(Ii) Complexes Of Flavylium Salt
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2014, Vol 8, Issue 1
Abstract
Two ligands were prepared and spectroscopic method and elemental analysis verified their structures. One of the ligands L1 is flavylium salt and the second L2 is a chalcone. Reaction between transition metal salts and the ligands have synthesized new metal complexes. These complexes have been identified by available spectroscopic tools (UV-visible and IR) the C.H.N results confirmed the proposed structures. The experimental data disclosed that the complexes were coordinated by 6-the coordinate with mono-and bidentate ligands forming octahedral structure, in which L2 acts as monodentate and L1 as bidentate ligand. The metal linked with L1 through the oxygen in ortho position in ring B, were as the linkage of the metal with L2 takes place through the oxygen of the carbonyl group.A theoretical treatment of the formation of complexes in the gas phase was studied, this was done using the HYPERCHEM-6 program for the Molecular mechanics and Semi-empirical calculations.The antimicrobial activity of the ligand and its metal complexes were studied against the following strains of microorganism : Staphylococcus aureus and Escherichia coli by the well diffusion method. Metal complexes showed enhanced antimicrobial activity compared with that of the free ligand.
Authors and Affiliations
Omar H. Al-Obaidi| Chemistry Department , Education College for Women, Al-Anbar University, Ramadi , IRAQ, email: dromaralobaidi@yahoo.com
Keywords
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