Investigation of the structure of photosynthetic reaction centers. Progress report, June 1, 1981-April 1, 1982
Technical Report
·
OSTI ID:6592699
The investigation is concerned with the application of Electron Nuclear Double Resonance (ENDOR) and Electron Nuclear Triple Resonance (TRIPLE) in the study of the photo excited triplet state of photosynthetic resonance methods hyperfine interactions between unpaired electrons and nuclear spins can be measured, giving an insight in the electronic and geometric structure of paramagnetic systems. During this initial phase of the project, research has focused on the following areas. (1) Instrumental aspects associated with the application of ENDOR and TRIPLE on the photo excited triplets randomly oriented in solid solution. (2) Exploration of the conditions required for these studies employing ground state triplet systems. (3) Study of photo excited triplet states of model systems such as naphthylene, zinc and magnesium tetraphenyl-porphyrin in polymethylmethacrylate or polycrystalline benzophenone. Progress made in these areas is discussed.
- Research Organization:
- Boston Univ., MA (USA)
- DOE Contract Number:
- AC02-81ER10911
- OSTI ID:
- 6592699
- Report Number(s):
- DOE/ER/10911-1; ON: DE83005429
- Country of Publication:
- United States
- Language:
- English
Similar Records
Investigation of the structure of photosynthetic reaction centers. Final report, June 1, 1981-May 31, 1984
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·
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Related Subjects
09 BIOMASS FUELS
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
ALKALINE EARTH METAL COMPLEXES
AROMATICS
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CHEMISTRY
COMPLEXES
CONDENSED AROMATICS
CONVERSION
ELECTRON SPIN RESONANCE
ENDOR
ENERGY
ENERGY CONVERSION
ENERGY LEVELS
ENERGY SOURCES
EXCITED STATES
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
MAGNESIUM COMPLEXES
MAGNETIC RESONANCE
MULTIPLETS
NAPHTHALENE
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
PHOTOSYNTHESIS
PORPHYRINS
RENEWABLE ENERGY SOURCES
RESEARCH PROGRAMS
RESONANCE
SOLAR ENERGY
SYNTHESIS
TRIPLETS
ZINC COMPLEXES
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
ALKALINE EARTH METAL COMPLEXES
AROMATICS
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CHEMISTRY
COMPLEXES
CONDENSED AROMATICS
CONVERSION
ELECTRON SPIN RESONANCE
ENDOR
ENERGY
ENERGY CONVERSION
ENERGY LEVELS
ENERGY SOURCES
EXCITED STATES
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
MAGNESIUM COMPLEXES
MAGNETIC RESONANCE
MULTIPLETS
NAPHTHALENE
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
PHOTOSYNTHESIS
PORPHYRINS
RENEWABLE ENERGY SOURCES
RESEARCH PROGRAMS
RESONANCE
SOLAR ENERGY
SYNTHESIS
TRIPLETS
ZINC COMPLEXES