Synthesis, characterization and biological activity of three square-planar complexes of Ni(II) with ethyl (2E)-2-[2-(diphenylphosphino) benzylidene]hydrazinecarboxylate and monodentate pseudohalides
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Three square-planar complexes of nickel(II) with the tridentate condensation derivative of 2-(diphenylphosphino)benzaldehyde and ethyl carbazate, and monodentate pseudohalides, have been synthesized. Their crystal structures have been determined. All the complexes showed a significant antifungal activity, while only the azido complex displayed antibacterial activity. All the complexes were cytotoxic to a panel of six tumor cell lines, the azido complex showing a similar activity as cisplatin to leukemia cell line K562 and lower toxicity to normal MRC-5 cells than that anticancer agent. The complexes interfered with cell cycle of tumor cells and induced plasmid DNA cleavage.
Keywords:Nickel(II) complexes / Pseudohalides / X-ray crystal structures / Antimicrobial activity / cytotoxicity
Source:European Journal of Medicinal Chemistry, 2013, 68, 111-120
- Elsevier France-Editions Scientifiques Medicales Elsevier, Paris