Synthesis of a heterodinuclear ruthenium(II)-platinum(II) complex linked by L-cysteine methyl ester

Sarah J. Yousouf, Craig R. Brodie, Nial J. Wheate, Janice R. Aldrich-Wright

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5 Citations (Scopus)

Abstract

A potential anticancer heterodinuclear ruthenium(II)ââ"šÂ¬Ã¢â‚¬Å“platinum(II) complex, [ruthenium(II)(4,4ââ"šÂ¬Ã‚²-dimethyl-2,2ââ"šÂ¬Ã‚²-bipyridine)2(5-(l-cysteine-methyl ester)-1,10-phenanthroline)-trans-chlorodiammineplatinum(II)] chloride, [Ru(Me2bipy)2(5-(l-cysteine-Me)-phen)-trans-Pt(NH3)2Cl]Cl3, was synthesised. l-Cysteine methyl ester was used to link the two metal centres, as more conventional straight chain diaminoalkanes and 2-mercaptoethylamine failed to couple to the phenanthroline ligand. From the precursor mononuclear ruthenium(II) complexes, which were separated into their ÃŽâ€Â- and Λ-isomers by column chromatography, the dinuclear complex was synthesised and characterised by 1H and 13C NMR, UVââ"šÂ¬Ã¢â‚¬Å“Vis, circular dichroism, fluorescence and electrospray ionisation mass spectrometry.
Original languageEnglish
Number of pages11
JournalPolyhedron
Publication statusPublished - 2007

Keywords

  • anticancer
  • heterodinuclear
  • l-Cysteine methyl ester
  • phenanthroline
  • platinum(II)
  • ruthenium(II)

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