title: Metal binding and antibacterial activity of ciprofloxacin complexes.
abstract: Four novel cobalt(II), copper(II), nickel(II) and zinc(II) complexes of the fluoroquinolone antibiotic ciprofloxacin have been prepared. The compounds were characterized by IR, UV-Visible, molar conductivity and elemental analyses. In all of the complexes, the drug ligand, ciprofloxacin (CFL) was coordinated through two carbonyl oxygen atoms. Octahedral and square-planar geometries have been proposed for the cobalt(II), nickel(II) and zinc(II), and copper(II) complexes, respectively. In vitro tests of susceptibility to these metal complexes showed stronger activity than that of ciprofloxacin against Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae and Bacillus dysenteriae.
authors.affiliation: Department of Chemistry, Bahauddin Zakariya University, Multan, Pakistan.
authors.forename: Zahid H
authors.initials: ZH
authors.lastname: Chohan
authors.forename: Claudiu T
authors.initials: CT
authors.lastname: Supuran
authors.forename: Andrea
authors.initials: A
authors.lastname: Scozzafava
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D002939:Ciprofloxacin / Q000138:chemical synthesis* / Q000494:pharmacology; D003035:Cobalt / Q000737:chemistry; D003300:Copper / Q000737:chemistry; D004926:Escherichia coli / Q000187:drug effects; D007711:Klebsiella pneumoniae / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D009532:Nickel / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013211:Staphylococcus aureus / Q000187:drug effects; D013329:Structure-Activity Relationship; D015032:Zinc / Q000737:chemistry
chemical_list: D000900:Anti-Bacterial Agents; D003035:Cobalt; D002939:Ciprofloxacin; D003300:Copper; D009532:Nickel; D015032:Zinc