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), Journal Name: Inorg. Chem.; (United States) Vol. 23:14; ISSN INOCA
- 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)
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)
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
Technical Report
·
Fri Dec 31 23:00:00 EST 1982
·
OSTI ID:5783527
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:6365766
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
·
Tue Mar 21 23:00:00 EST 1989
· Inorganic Chemistry; (USA)
·
OSTI ID:5062667
Related Subjects
14 SOLAR ENERGY
140505 -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
AZINES
BIPYRIDINES
COMPLEXES
DATA
ENERGY LEVELS
ENERGY TRANSFER
EXCITED STATES
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
OSMIUM COMPLEXES
PYRIDINES
RUTHENIUM COMPLEXES
SOLVENTS
TRANSITION ELEMENT COMPLEXES
140505 -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
AZINES
BIPYRIDINES
COMPLEXES
DATA
ENERGY LEVELS
ENERGY TRANSFER
EXCITED STATES
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
OSMIUM COMPLEXES
PYRIDINES
RUTHENIUM COMPLEXES
SOLVENTS
TRANSITION ELEMENT COMPLEXES