[Re(Co)3(3,3′-trimethylene-2,2′-biquinoline) (p-substituted-py)]+ complexes. Preparation and characterization

Article abstract of DOI:10.1016/S0277-5387(98)00004-7

A series of new rhenium(I) complexes of the type [Re(CO)₃(3,3′-trimethylene-2,2′-biquinoline)(L)](CF ₃SO₃)_n, (L = CF₃SO₃^-, pyridine (py) or para-substituted pyridine like HO-py, ph-py or NC-py; n = 0 or 1) were prepared and characterized by FTIR, ¹H NMR, and UV-vis spectroscopies and by cyclic voltammetry. The pseudo-octahedral facial configuration of these compounds was established by FTIR. The differences found in the spectroscopical and electrochemical results were associated to the effect of the para-position substituent of the L pyridine ligand.