“…))}.The results are comparable with the other examples of ruthenium() with π-acidic ligands e.g., 2,2Ј-bipyridine, 41,42 2-(arylazo)pyridines,10 2-(arylazo)imidazoles 21 and 2-aryl-(2pyridylmethylene)amine. 38 Electrochemical parameterization of the Ru(III)/Ru(II) redox potential of arylazoimidazole complexes of ruthenium(II) Several complexes of 1-alkyl-2-(arylazo)imidazoles of ruthenium() belong to RuCl 2 (RaaiRЈ) 2 , 21,22 [Ru(bpy) 2 -(RaaiRЈ)](ClO 4 ) 2 24 and [Ru(bpy)(RaaiRЈ) 2 ](ClO 4 ) 2 have been characterised by spectroscopic and electrochemical techniques.…”