Photoinitiated electron transfer in multi-chromophoric species: Synthetic tetrads and pentads

Technical Report · Wed Feb 14 00:00:00 EST 1990

DOI:https://doi.org/10.2172/5569756· OSTI ID:5569756

This research project involves the design, synthesis and study of the molecules which mimic many of the important aspects of photosynthetic electron and energy transfer. Specifically, the molecules are designed to mimic the following aspects of natural photosynthetic multistep electron transfer: electron donation from a tetrapyrrole excited singlet state, electron transfer between tetrapyrroles, electron transfer from tetrapyrroles to quinones, and electron transfer between quinones with different redox properties. In addition, they model carotenoid antenna function in photosynthesis (singlet-singlet energy transfer from carotenoid polyenes to chlorophyll) and carotenoid photoprotection from singlet oxygen damage (triplet-triplet energy transfer from chlorophyll to carotenoids).

• Research Organization: Arizona State Univ., Tempe, AZ (United States). Dept. of Chemistry
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-87ER13791
• OSTI ID: 5569756
• Report Number(s): DOE/ER/13791-15; ON: DE92008812
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
14 SOLAR ENERGY
CAROTENOIDS
CHEMICAL PREPARATION
PORPHYRINS
QUINONES
BIOMIMETIC PROCESSES
CATIONS
ELECTRON TRANSFER
ENERGY CONVERSION
FLUORESCENCE
MULTI-PHOTON PROCESSES
PHOTOCHEMISTRY
PROGRESS REPORT
RADICALS
AROMATICS
CARBOXYLIC ACIDS
CHARGED PARTICLES
CHEMISTRY
CONVERSION
DOCUMENT TYPES
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
IONS
LUMINESCENCE
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PIGMENTS
SYNTHESIS
TERPENES
400500* - Photochemistry
140505 - Solar Energy Conversion- Photochemical
Photobiological
& Thermochemical Conversion- (1980-)
400201 - Chemical & Physicochemical Properties