Metallopolymer photochemistry. Photophysical, photochemical, and photoelectrochemical properties of (bpy)/sub 2/Ru/sup II/ < sites bound to poly(4-vinylpyridine). [Visible radiation]
The photochemical and photophysical properties of the polymer-bound chromophore Ru(bpy)/sub 2/(PVP)/sub 2//sup 2 +/ (PVP is poly(4-vinylpyridine)) have been investigated in homogeneous solution. Results have been obtained with polymers both dilute and concentrated in chromophore. Lifetime and quantum yield data are interpreted in terms of models of excited-state behavior previously proposed for analogous monomeric poly(pyridyl) complexes of Ru(II). Excited-state sites within the metallopolymers undergo oxidative and reductive electron-transfer quenching. The quenching reactions were investigated by Stern-Volmer quenching and conventional microsecond flash photolysis. Sensitization of n-TiO/sub 2/ to visible light has been observed on a semiconductor coated with a film of the metallopolymer.
- Research Organization:
- Univ. of North Carolina, Chapel Hill
- DOE Contract Number:
- AS05-78ER06034
- OSTI ID:
- 6304668
- Journal Information:
- J. Am. Chem. Soc.; (United States), Vol. 104:24
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
14 SOLAR ENERGY
BIPYRIDINES
CHEMICAL PREPARATION
PHOTOCHEMISTRY
POLYVINYLS
PYRIDINES
RUTHENIUM COMPLEXES
VINYL MONOMERS
COATINGS
EXCITED STATES
EXPERIMENTAL DATA
SEMICONDUCTOR DEVICES
TITANIUM OXIDES
AZINES
CHALCOGENIDES
CHEMISTRY
COMPLEXES
DATA
ENERGY LEVELS
HETEROCYCLIC COMPOUNDS
INFORMATION
MONOMERS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
POLYMERS
SYNTHESIS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
400500* - Photochemistry
140505 - Solar Energy Conversion- Photochemical
Photobiological
& Thermochemical Conversion- (1980-)