Photoinitiated electron transfer in multi-chromophoric species: Synthetic tetrads and pentads. Technical progress report, 1987--1990

Technical Report · Wed Feb 14 04:00:00 EST 1990

DOI:https://doi.org/10.2172/10127660· OSTI ID:10127660

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, Washington, DC (United States)
• DOE Contract Number: FG02-87ER13791
• OSTI ID: 10127660
• Report Number(s): DOE/ER/13791--15; ON: DE92008812
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140505
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201
400500
BIOMIMETIC PROCESSES
CAROTENOIDS
CATIONS
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
CHEMICAL PREPARATION
ELECTRON TRANSFER
ENERGY CONVERSION
FLUORESCENCE
MULTI-PHOTON PROCESSES
PHOTOCHEMICAL, PHOTOBIOLOGICAL, AND THERMOCHEMICAL CONVERSION
PHOTOCHEMISTRY
PORPHYRINS
PROGRESS REPORT
QUINONES
RADICALS