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- W2080632363 abstract "Abstract The interaction of clavulanic acid (HClav) and nalidixic acid (HNal) with transition metals has been investigated. The complexes [M(Clav)2(H2O)2] (M = Cu(II) or Ni(II)) and [Cu(Nal)2 (H2O)2] and [Fe(Nal)2(H2O)Cl] were obtained by reaction of the ligands with metal ions in methanolic solution under a nitrogen atmosphere. They were characterized by physicochemical and spectroscopic methods. IR spectra of clavulanic complexes showed changes in the carbonyl group on the β-lactamic ring, indicating that this oxygen atom participates in coordination to the metal ions, while in the nalidixic complexes, the coordination to the metal ions is only through the carboxylate group. The ligands behave as monoanionic bidentate ligands and the structure and bonding of the chelates are discussed based on the spectroscopic data, and an octahedral geometry is suggested for their structures. In vitro antibacterial activity of the ligands and the complexes were tested using the filter paper diffusion method and the chosen strains include Escherichia coli, Pseudomonas aeruginosa, Salmonella typhimorium, Staphylococcus aureus, Bacillus cereus, Proteus vulgaris and Klepsiella pneumoniae." @default.
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- W2080632363 date "2001-06-01" @default.
- W2080632363 modified "2023-09-27" @default.
- W2080632363 title "SYNTHESIS AND ANTIBACTERIAL ACTIVITY OF SOME METAL COMPLEXES CONTAINING CLAVULANIC OR NALIDIXIC ACID" @default.
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- W2080632363 doi "https://doi.org/10.1080/00958970108022614" @default.
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