Solvent dependence of metal-to-ligand charge-transfer transitions. Evidence for initial electron localization in MLCT excited states of 2,2'-bipyridine complexes of ruthenium(II) and osmium(II)
Journal Article
·
· Inorg. Chem.; (United States)
Metal-to-ligand charge-transfer (MLCT) absorption bands for the complexes Ru(bpy)/sub 3//sup 2 +/, Os(bpy)/sub 3//sup 2 +/, Os(bpy)/sub 2/(py)/sub 2//sup 2 +/, Os(bpy)/sub 2/(CH/sub 3/CN)/sub 2//sup 2 +/, and Os(bpy)/sub 2/(1,2-(Ph/sub 2/P)/sub 2/C/sub 6/H/sub 4/)/sup 2 +/ (bpy is 2,2'-bipyridiene;py is pyridine) are solvent dependent. The dependence can be interpreted with use of dielectric continuum theory but the D/sub 3/ ions Ru(bpy)/sub 3//sup 2 +/ and Os(bpy)/sub 3//sup 2 +/ only if in the excited state the excited electron is localized on a single ligand rather than delocalized over all three. 37 references, 4 figures, 2 tables.
- Research Organization:
- Univ. of North Carolina, Chapel Hill
- OSTI ID:
- 5890355
- Journal Information:
- Inorg. Chem.; (United States), Vol. 23:14
- Country of Publication:
- United States
- Language:
- English
Similar Records
Solvent dependence of metal-to-ligand charge-transfer transitions. Evidence for initial electron localization in MLCT excited states of 2,2'-bipyridine complexes of Ru(II) and Os(II)
Photosubstitution in tris chelate complexes of ruthenium(II) containing the ligands 2,2 prime -bipyrazine, 2,2 prime -bipyrimidine, 2,2 prime -bipyridine, and 4,4 prime -dimethyl-2,2 prime -bipyridine: Energy gap control
Solvent tuning of the excited-state properties of (2,2'-bipyridine)tetracyanoferrate(II): direct observation of a metal-to-ligand charge-transfer excited state of iron(II)
Technical Report
·
Sat Jan 01 00:00:00 EST 1983
·
OSTI ID:5890355
Photosubstitution in tris chelate complexes of ruthenium(II) containing the ligands 2,2 prime -bipyrazine, 2,2 prime -bipyrimidine, 2,2 prime -bipyridine, and 4,4 prime -dimethyl-2,2 prime -bipyridine: Energy gap control
Journal Article
·
Wed Mar 22 00:00:00 EST 1989
· Inorganic Chemistry; (USA)
·
OSTI ID:5890355
+2 more
Solvent tuning of the excited-state properties of (2,2'-bipyridine)tetracyanoferrate(II): direct observation of a metal-to-ligand charge-transfer excited state of iron(II)
Journal Article
·
Wed May 27 00:00:00 EDT 1987
· J. Am. Chem. Soc.; (United States)
·
OSTI ID:5890355
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
14 SOLAR ENERGY
BIPYRIDINES
ENERGY TRANSFER
EXCITED STATES
ORGANIC PHOSPHORUS COMPOUNDS
OSMIUM COMPLEXES
RUTHENIUM COMPLEXES
EXPERIMENTAL DATA
SOLVENTS
AZINES
COMPLEXES
DATA
ENERGY LEVELS
HETEROCYCLIC COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)
140505 - Solar Energy Conversion- Photochemical
Photobiological
& Thermochemical Conversion- (1980-)
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
14 SOLAR ENERGY
BIPYRIDINES
ENERGY TRANSFER
EXCITED STATES
ORGANIC PHOSPHORUS COMPOUNDS
OSMIUM COMPLEXES
RUTHENIUM COMPLEXES
EXPERIMENTAL DATA
SOLVENTS
AZINES
COMPLEXES
DATA
ENERGY LEVELS
HETEROCYCLIC COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)
140505 - Solar Energy Conversion- Photochemical
Photobiological
& Thermochemical Conversion- (1980-)