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Synthesis, characterisation and biological properties of gold(III) compounds with modified bipyridine and bipyridylamine ligands

Casini, Angela, Diawara, Mariam Celine, Scopelliti, Rosario, Zakeeruddin, Shaik Mohammed, Graetzel, Michael and Dyson, Paul J. 2010. Synthesis, characterisation and biological properties of gold(III) compounds with modified bipyridine and bipyridylamine ligands. Dalton Transactions 39 (9) , pp. 2239-2245. 10.1039/B921019A

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Abstract

Square planar gold(III) complexes that contain functionalised bipyridine ligands of general formula [Au(N⁁N)Cl2][PF6] [where N⁁N = 2,2′-bipyridine, 4,4′-dimethyl-2,2′-bipyridine, 4,4′-dimethoxy-2,2′-bipyridine and 4,4′-diamino-2,2′-bipyridine] have been prepared and characterised by NMR spectroscopy and mass spectrometry. Two of the complexes have also been characterised in the solid state by X-ray crystallography. In addition, a gold(III) compound bearing a dipyridin-2-ylamine ligand was also prepared and characterised. The complexes were found to undergo hydrolysis under pseudo-physiological conditions. Moreover, the complexes showed moderate to good cytotoxicity in vitro towards the A2780 human ovarian carcinoma cell line and the cisplatin resistant variant A2780cisR. Reactivity studies with biomolecules, such as reducing agents, plasmid DNA and a model protein (ubiquitin) were also performed to provide tentative insights into the mode of action of the complexes.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Subjects: Q Science > QD Chemistry
Publisher: Royal Society of Chemistry
Last Modified: 04 Jun 2017 08:30
URI: http://orca.cf.ac.uk/id/eprint/79348

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