Chemical and photochemical behavior of ruthenium nitrosyl complexes with terpyridine ligands in aqueous media
Pablo Labra‐Vázquez, Mathilde Bocé, Marine Tassé, Sonia Mallet‐Ladeira, Pascal G. Lacroix, Norberto Farfán, Isabelle Malfant
Abstract
) (5b) compounds. The different cis/trans(Cl,Cl) complexes exhibit an intense low-lying transition in the λ = 330-390 nm range, which appears to be slightly blue-shifted after Cl → OH substitution. In water, both cis/trans(Cl,Cl) isomers are converted to a single trans(NO,OH) isomer in which one chlorido- is replaced by one hydroxo-ligand, which avoids tedious separation workout. The water stable trans(NO,OH)-species all release NO with quantum yields of 0.010 to 0.075 under irradiation at 365 nm. The properties are discussed with computational analysis performed within the framework of Density Functional Theory.
Topics & Concepts
TerpyridineRutheniumChemistryAqueous mediumAqueous solutionPhotochemistryStereochemistryMetalCatalysisPhysical chemistryOrganic chemistryMagnetism in coordination complexesMetal complexes synthesis and propertiesMolecular Sensors and Ion Detection