Correlation of ligand field excited-state energies with ligand field strength in (polypyridine)ruthenium(II) complexes
Journal Article
·
· Inorg. Chem.; (United States)
The temperature dependence of the emissions intensities and lifetimes for several (polypyridine)ruthenium(II) complexes have been evaluated. For complexes that have weaker ligand fields than tris(bipyridine)ruthenium(II), a dramatic decrease in the emission intensity and lifetime occurs near 170 K. This behavior is ascribed to population of a ligand field state that lies only 2000 cm/sup -1/ above the lowest metal-to-ligand charge-transfer excited state. Above 250 K, a weak emission remains and an additional activated process can be observed in the vicinity of 260-330 K. This weak emission is assigned to emission from an impurity, most likely tris(bipyridine)ruthenium(II).
- Research Organization:
- Tulane Univ., New Orleans, LA
- OSTI ID:
- 6403813
- Journal Information:
- Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 24:12; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Selective perturbation of ligand field excited states in polypyridine ruthenium(II) complexes
Lifetimes, spectra, and quenching of the excited states of polypyridine complexes of iron(II), ruthenium(II), and osmium(II)
Dramatic increase of {sup 3}MLCT state lifetime of a ruthenium(II) polypyridine complex upon entrapment within Y-zeolite supercages
Journal Article
·
Wed Oct 03 00:00:00 EDT 1984
· J. Am. Chem. Soc.; (United States)
·
OSTI ID:6312842
Lifetimes, spectra, and quenching of the excited states of polypyridine complexes of iron(II), ruthenium(II), and osmium(II)
Journal Article
·
Tue Feb 12 23:00:00 EST 1980
· J. Am. Chem. Soc.; (United States)
·
OSTI ID:5269727
Dramatic increase of {sup 3}MLCT state lifetime of a ruthenium(II) polypyridine complex upon entrapment within Y-zeolite supercages
Journal Article
·
Wed Apr 12 00:00:00 EDT 1995
· Inorganic Chemistry
·
OSTI ID:75709
Related Subjects
14 SOLAR ENERGY
140505 -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
640304 -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
AZINES
COMPLEXES
DATA
EMISSION
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
INFORMATION
LIGANDS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANOMETALLIC COMPOUNDS
POLYMERS
PYRIDINES
RUTHENIUM COMPLEXES
TEMPERATURE EFFECTS
TRANSITION ELEMENT COMPLEXES
140505 -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
640304 -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
AZINES
COMPLEXES
DATA
EMISSION
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
INFORMATION
LIGANDS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANOMETALLIC COMPOUNDS
POLYMERS
PYRIDINES
RUTHENIUM COMPLEXES
TEMPERATURE EFFECTS
TRANSITION ELEMENT COMPLEXES