Hydrogen-bonded assemblies of ruthenium(II)-biimidazole complex cations and cyanometallate anions: structures and photophysics.
The complex cations [RuL2(H2biim)]2+ (L=bipy, 4,4'-tBu2-bipy) interact with cyanometallate anions via a chelating hydrogen-bonding interaction between the two N-H donors of the complex cation and the N lone pair of one cyanide ligand in the complex anion; the anion hexacyanoferrate(III) quenches the Ru(II)-based luminescence in CH2Cl2 solution by photoinduced electron-transfer within the H-bonded assembly, whereas hexacyanocobaltate(III) enhances the Ru(II)-based luminescence.
Derossi
Sofia
S
Department of Chemistry, University of Sheffield, Sheffield, UK S3 7HF.
Adams
Harry
H
Ward
Michael D
MD
D000838:Anions / Q000737:chemistry; D002412:Cations / Q000737:chemistry; D006860:Hydrogen Bonding; D007093:Imidazoles / Q000737:chemistry*; D008024:Ligands; D049449:Luminescence; D008163:Luminescent Measurements / Q000379:methods; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008958:Models, Molecular; D009570:Nitriles / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D010777:Photochemistry; D012428:Ruthenium / Q000737:chemistry*; D012680:Sensitivity and Specificity
D000838:Anions; D002412:Cations; D007093:Imidazoles; D008024:Ligands; D009570:Nitriles; D009942:Organometallic Compounds; D012428:Ruthenium