Slow triplet energy transfer to lower excited states in ruthenium(II) acylpyridine complexes
Journal Article
·
· J. Am. Chem. Soc.; (United States)
A few years ago they reported that locally excited acylpyridine (AP) triplets in Ru/sup II/(NH/sub 3/)/sub 5/AP complexes undergo relatively slow internal conversion (IL ..-->.. MLCT) to the lower lying metal-to-ligand charge-transfer states. At that time, they could merely place a maximum value of 10/sup 8/ s/sup -1/ on the rate constant k/sub ic/ for such internal conversion. They now can report the actual value more precisely. They also find that internal quenching of triplet acylpyridines in Ru/sup II/(bpy)/sub 2/(AP)/sub 2/ complexes by triplet energy transfer from acylpyridine to bipyridine is unexpectedly slow, unique behavior for two organic chromophores held so close together.
- Research Organization:
- Michigan State Univ., East Lansing
- OSTI ID:
- 6508569
- Journal Information:
- J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 109:7; ISSN JACSA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photophysical and photochemical behavior of nitro complexes of ruthenium(II)
Intramolecular, photoinduced electron transfer in ruthenium(II) bipyridine-quinone complexes
Early photophysical events of a ruthenium(ιι) molecular dyad capable of performing photochemical water oxidation and of its model compounds
Journal Article
·
Tue Mar 16 23:00:00 EST 1993
· Inorganic Chemistry; (United States)
·
OSTI ID:6646127
Intramolecular, photoinduced electron transfer in ruthenium(II) bipyridine-quinone complexes
Journal Article
·
Tue Nov 08 23:00:00 EST 1994
· Inorganic Chemistry
·
OSTI ID:420995
Early photophysical events of a ruthenium(ιι) molecular dyad capable of performing photochemical water oxidation and of its model compounds
Journal Article
·
Sun Feb 17 19:00:00 EST 2019
· Photochemical & Photobiological Sciences
·
OSTI ID:1609790
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
AZINES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
COMPLEXES
DATA
DE-EXCITATION
EFFICIENCY
ENERGY LEVELS
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
INFORMATION
KINETICS
MULTIPLETS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
PYRIDINES
QUANTUM EFFICIENCY
RADIATIONLESS DECAY
REACTION KINETICS
RUTHENIUM COMPLEXES
TRANSITION ELEMENT COMPLEXES
TRIPLETS
400500* -- Photochemistry
AZINES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
COMPLEXES
DATA
DE-EXCITATION
EFFICIENCY
ENERGY LEVELS
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
INFORMATION
KINETICS
MULTIPLETS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
PYRIDINES
QUANTUM EFFICIENCY
RADIATIONLESS DECAY
REACTION KINETICS
RUTHENIUM COMPLEXES
TRANSITION ELEMENT COMPLEXES
TRIPLETS