Transient storage of photochemically produced oxidative and reductive equivalents in soluble redox polymers
Journal Article
·
· J. Phys. Chem.; (United States)
Optical excitation and electron-transfer quenching of the metal to ligand charge-transfer (MLCT) excited state(s) of ((5-NH/sub 2/-phen)Ru(bpy)/sub 2/)/sup 2 +/ occur in solutions containing polystyrene polymers in which either pendant paraquat (PQ/sup 2 +/) or phenothiazine (PTZ) sites are attached. The quenching and subsequent electron-transfer steps lead to the appearance of -PQ/sup +/ and -PTZ/sup +/ on separate polymers. Since electron transfer between -PQ/sup +/ and -PTZ/sup +/ sites on separate polymers is slow, the lifetime of the photochemically produced oxidative and reductive equivalents is enhanced by approx.10/sup 3/ compared to related monomeric quenchers under similar conditions. 7 references, 1 figure.
- Research Organization:
- Univ. of North Carolina, Chapel Hill
- DOE Contract Number:
- AS05-78ER06034
- OSTI ID:
- 5816289
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:5; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Energy- and electron-transfer shuttling by a soluble, bifunctional redox polymer
Electron and energy shuttling between redox sites on soluble polymers
Photoeffects in thin-film molecular-level chromophore-quencher assemblies. 1. Physical characterization
Journal Article
·
Wed Jan 09 23:00:00 EST 1991
· Journal of Physical Chemistry; (USA)
·
OSTI ID:5796368
Electron and energy shuttling between redox sites on soluble polymers
Journal Article
·
Wed May 27 00:00:00 EDT 1987
· J. Am. Chem. Soc.; (United States)
·
OSTI ID:6365790
Photoeffects in thin-film molecular-level chromophore-quencher assemblies. 1. Physical characterization
Journal Article
·
Wed Jan 11 23:00:00 EST 1989
· Journal of Physical Chemistry; (USA)
·
OSTI ID:5447016
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
AMINES
AZINES
BIPYRIDINES
CHEMICAL REACTIONS
CHEMISTRY
COMPLEXES
DATA
DECOMPOSITION
ELECTRON TRANSFER
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
INFORMATION
LIFETIME
MATERIALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
OXIDATION
PETROCHEMICALS
PETROLEUM PRODUCTS
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
PHOTOLYSIS
PLASTICS
POLYMERS
POLYOLEFINS
POLYSTYRENE
POLYVINYLS
PYRIDINES
REDUCTION
RUTHENIUM COMPLEXES
SYNTHETIC MATERIALS
TRANSITION ELEMENT COMPLEXES
400500* -- Photochemistry
AMINES
AZINES
BIPYRIDINES
CHEMICAL REACTIONS
CHEMISTRY
COMPLEXES
DATA
DECOMPOSITION
ELECTRON TRANSFER
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
INFORMATION
LIFETIME
MATERIALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
OXIDATION
PETROCHEMICALS
PETROLEUM PRODUCTS
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
PHOTOLYSIS
PLASTICS
POLYMERS
POLYOLEFINS
POLYSTYRENE
POLYVINYLS
PYRIDINES
REDUCTION
RUTHENIUM COMPLEXES
SYNTHETIC MATERIALS
TRANSITION ELEMENT COMPLEXES