Synthesis and characterization of some ruthenium(II) complexes containing triphenylphosphine or triphenylarsine with imidazoles

Reactions of [RuX2(PPh3)(3)] (X = Cl or Br) and [RuCl3(PPh3)(3)] with L (Im, BzIm or 2-Melm) have been carried out in benzene and compounds of the type [RUX2(PPh3)(L)(3)] are obtained. Reactions of [RUCl3(AsPh3)(2)(MeOH)] and [RuBr3(AsPh3)(3)] with L (L = Im and Bzlm) in benzene at room temperature or refluxing conditions lead to the formation of [RuX2(AsPh3)(IM)(3)] and [RuX2(BzIm)(4)], respectively. All the compounds have been characterized by analytical data, conductivity measurements, IR, NMR, UV-visible and cyclic voltametric studies.