title: Designing tridentate ligands for ruthenium(II) complexes with prolonged room temperature luminescence lifetimes.
abstract: Coordination complexes have been used extensively as the photoactive component of artificial photosynthetic devices. While polynuclear arrays increase the probability of light absorption, the incorporation of the stereogenic Ru(2,2'-bipyridine)(3)(2+) motif gives rise to diastereomeric mixtures whereas the achiral Ru(2,2':6',2"-terpyridine)(2)(2+) motif creates stereopure polynuclear complexes. Thus, polynuclear arrays composed of ruthenium(II) complexes of tridentate ligands are the targets of choice for light-harvesting devices. As Ru(II) complexes of tridentate ligands have short excited state lifetimes at room temperature (r. t.), considerable effort has been focused on trying to increase their r. t. luminescence lifetime for practical applications. This tutorial review will report on the sophisticated synthetic strategies currently in use to enhance the room temperature photophysical properties of Ru(II) complexes of tridentate ligands.
authors.affiliation: Departement de chimie, Universite de Montreal, Montreal, Quebec, Canada H3T 1J4.
authors.forename: Elaine A
authors.initials: EA
authors.lastname: Medlycott
authors.forename: Garry S
authors.initials: GS
authors.lastname: Hanan
mesh_terms: D008024:Ligands; D049449:Luminescence; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*; D013237:Stereoisomerism; D013696:Temperature
chemical_list: D008024:Ligands; D009942:Organometallic Compounds; D012428:Ruthenium