RESUMEN

Ruthenium(II) dichloride complexes of two chiral tetradentate aminosulfoxide ligands, varying only in the N-N linker, were synthesized. With each ligand, two major isomers formed, and these were structurally assigned and characterized through a combination of NMR and UV-vis spectroscopies, X-ray crystallography, and density functional theory calculations. The cis-ß geometric isomer was formed by each ligand, whereas the trans and cis-α geometric isomers were significant components for one ligand only. Cyclic voltammetry studies show that only the cis-ß isomers undergo linkage isomerism upon oxidation to ruthenium(III), whereas the trans and cis-α isomers show simple reversible redox couples.

Asunto(s)

Cloruros/química , Compuestos Organometálicos/química , Rutenio/química , Compuestos de Sulfhidrilo/química , Cristalografía por Rayos X , Ligandos , Modelos Moleculares , Estructura Molecular , Compuestos Organometálicos/síntesis química , Oxidación-Reducción , Teoría Cuántica , Estereoisomerismo