Ruthenium(II) 2,2′-bipyridine complexes incorporating substituted phenylazo-(2-(phenylthio))phenylmethine ancillary ligands. Synthesis, crystal structure, spectroscopic and redox properties

Abstract

AbstractFive ruthenium complexes bearing phenylazo-(2-(phenylthio))phenylmethine ligands of the general type trans-[Ru II (bpy)(L)(Cl) 2 ] (C1-C5) {L = YC 6 H 4 N=NC(COCH 3 )=NC 6 H 4 (2-SC 6 H 5 ), H (L1), Cl (L2), OCH 3 (L3), Br (L4), or NO 2 (L5)} have been synthesized. The crystal structure of trans-[Ru(bpy)(L1)(Cl) 2 ] (C1) is reported and shows no direct metal-S interaction. The complexes have been characterized through spectroscopic (IR, UV/vis and NMR) and electrochemical (CV) techniques. The electrochemical parameters (E L (L)) of the azoimine ligands are reported.Graphical AbstractFive ruthenium complexes bearing phenylazo-(2-(phenylthio))phenylmethine ligands of the general type trans-[Ru II (bpy)(L)(Cl) 2 ] {L = YC 6 H 4 N=NC(COCH 3 )=NC 6 H 4 (2-SC 6 H 5 ), Y = H (L1), Cl (L2), OCH 3 (L3), Br (L4), and NO 2 (L5)} has been synthesized. The crystal structure of the complex trans-[Ru(bpy)(L1)(Cl) 2 ] is reported and show no direct metal-S interactions. This family has been characterized through spectroscopic and electrochemical techniques. The electrochemical parameters (E L (L)) of these new ligands (L) are reported.[IMAGE]