1. Metal(II) Nitrate Complexes with Phenyl-2-Pyridil-Ketone: Synthesis, Characterization and Antibacterial Activity
- Author
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Ileana Rau, Catalin Maxim, Angela Kriza, and Mariana Tatucu
- Subjects
Denticity ,Coordination sphere ,Ligand ,Stereochemistry ,chemistry.chemical_element ,Crystal structure ,Zinc ,Medicinal chemistry ,Inorganic Chemistry ,chemistry.chemical_compound ,Monomer ,chemistry ,Molecule ,Physical and Theoretical Chemistry ,Single crystal - Abstract
Four new mononuclear complexes having general formulae [M(ppk)2(H2O)2](NO3)2 (M═Co (1); M═Ni (2); M═Zn (3)) and [M(ppk)2(NO3)2] (4) (ppk = phenyl-2-pyridil-ketone) have been synthesized and characterized by elemental analysis, IR and UV-vis spectroscopy. The structures of 3 and 4 were accomplished by single crystal X-ray diffraction. The crystallographic investigation of 3 reveals monomeric, dicationic units in which the zinc(II) ion is six-coordinated. The coordination sphere is formed by two N, O bidentate phenyl-2-pyridil-ketone ligands and two water molecules. The crystal structure of 4 consists of monomeric units in which the cadmium atom is eight-coordinated. Both the organic ligand and nitrate groups are bidentate chelators. Biological activity studies reveal a moderate activity of complexes against Gram negative and Gram positive bacteria.
- Published
- 2009
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