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Original Articles

Synthesis and antibacterial activity of cephradine metal complexes

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Pages 621-627 | Received 24 Jan 2005, Accepted 16 May 2005, Published online: 25 Jan 2007
 

Abstract

Cephradine (Hcephra) interacts with transition metal ions to give [Fe(cephra)Cl2] and [M(cephra)Cl] complexes (M = Mn(II), Co(II), Ni(II), Cu(II) and Zn(II)) which were characterized by physicochemical and spectroscopic methods; a tetrahedral geometry is suggested for their structures where cephradine behaves as monoanionic tridentate ligand. The complexes have been screened for antibacterial activity against several bacteria, and the results showed that all metal complexes tested had lower antibiotic activity than the free ligand.

Acknowledgements

Our sincere thanks to the Comision de Investigacion from the Universidad de Oriente for providing financial support as well as Lic. Erasto Bastardo for elemental analyses.

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