Abstract

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. © 2005 Elsevier Ltd. All rights reserved.