Bidentate mixed ligand ruthenium(III) complexes containing triphenylphosphine or triphenylarsine and their antibacterial activity

Abstract

Ruthenium(III) mixed ligand complexes of the type [RuX₂(LL')(EPh₃)₂] (X = Cl or Br; LL' = α, β-unsaturated-β - ketoaminate; E = P or As) have been synthesized by the reactions of [RuCl₃(PPh₃)₃], [RuCl₃(AsPh₃)₃], [RuBr₃(AsPh₃)₃]or [RuBr₃(PPh₃)₂h(MeOH)] with appropriate bidentate chelating ligands. The complexes have been characterised by elemental analyses, spectral (IR, electronic and EPR) and electrochemical data. An octahedral structure has been tentatively proposed for all these complexes. The antibacterial activities of some of the ligands and their complexes have also been carried out.