Ligational behavior of a bidentate coumarin derivative towards CoII, NiII, and CuII: synthesis, characterization, electrochemistry, and antimicrobial studies
作者： Srinivasa Budagumpi , Ullas N. Shetti , Naveen V. Kulkarni , Vidyanand K. Revankar
DOI: 10.1080/00958970903261317
关键词: Metal ions in aqueous solution 、 Ligand 、 Chemistry 、 Denticity 、 Cobalt 、 Crystallography 、 Nickel 、 Schiff base 、 Copper 、 Metal 、 Inorganic chemistry
摘要: A series of new Co(II), Ni(II), and Cu(II) complexes Schiff base derived from coumarin have been prepared characterized by analytical spectral methods. The is synthesized the condensation 2,6-diaminopyridine 3-acetylcoumarin in 1 : stoichiometric ratio. All metal ligand ratio except nickel complex, where it was found to be 2. UV-Vis spectra magnetic moment studies confirm existence tetrahedral octahedral geometries around cobalt(II) nickel(II) ions, respectively, but copper(II) chloride/nitrate/sulfate square-planar geometry acetate complex distorted octahedral. ESR copper at room temperature liquid nitrogen were tetragonal. more active against bacteria Ni(II) complex; only CuLSO4 CuL(CH3COO)2 shown enhanced activity fungi.
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