title: Metal-metal interactions in dinuclear ruthenium complexes containing bridging 4,5-di(2-pyridyl)imidazolates and related ligands.
abstract: The dinuclear bis(2,2'-bipyridine)ruthenium complex of 4,5-di(2-pyridyl)imidazolate has been prepared and separated into its (meso and rac) diastereoisomers. The 2-phenyl substituted analogue forms the meso isomer selectively. All three complexes have been characterised by 1H NMR and X-ray crystallography. Electrochemical measurements and spectroelectrochemistry of the mixed-valence states reveal strong metal-metal interactions and IVCT bands that are highly dependent on the electrolyte.
authors.affiliation: Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
authors.forename: Jonathan W
authors.initials: JW
authors.lastname: Slater
authors.forename: Deanna M
authors.initials: DM
authors.lastname: D'Alessandro
authors.forename: F Richard
authors.initials: FR
authors.lastname: Keene
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Steel
mesh_terms: D018360:Crystallography, X-Ray; D004563:Electrochemistry; D007093:Imidazoles / Q000737:chemistry*; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D011725:Pyridines / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*; D012680:Sensitivity and Specificity; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013237:Stereoisomerism
chemical_list: D007093:Imidazoles; D008024:Ligands; D009942:Organometallic Compounds; D011725:Pyridines; D012428:Ruthenium