The new Ru(NBD)Cl2(substituted-2,2′-biquinoline) complexes. Synthesis and characterization

A new ruthenium complex series of type Ru(NBD)Cl2L (with L = 2,2′-biquinoline derivative) was prepared. Their spectroscopic properties were analysed by RMN 1H, UV–Vis and Infrared and their electrochemical potentials were obtained by cyclic voltammetry technique. The structure for a complex of this series was established by X-ray analysis. This structure shows a planarity distortion of biquinoline ligand on the complex. The coplanarity distortion degree through the complex series is modulated by the 3,3′-substitued position on the 2,2′-biquinoline ligand, and show correlation with the differences observed on their spectroscopic properties.

The syntheses of three complexes having the general formula Ru(NBD)Cl2L (with L = 2,2′-biquinoline derivative) are described. Their spectroscopic properties are analyzed showing slight dependence with the complexes conformation, which is modulated, by the 3,3′-substitued position on the 2,2′-biquinoline ligand.Figure optionsDownload as PowerPoint slide