Charge separation and energy transfer in carotenopyropheophorbide-quinone triads

Journal Article · Wed Aug 20 00:00:00 EDT 1986 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00277a053· OSTI ID:5364665

Liddell, P A; Barrett, D; Makings, L R; Pessiki, P J; Gust, D; Moore, T A

In natural photosynthesis membranes, chlorophyll molecules serve as the site of the initial photodriven charge separation. In addition, they play a role in subsequent electron-transfer steps, accept singlet excitation energy from carotenoid antenna molecules, and transfer triplet energy to carotenoid acceptors (thereby preventing sensitized singlet oxygen production and subsequent photodamage to the organism). The authors report herein the synthesis and study of chlorophyll-based carotenopyropheophorbide-quinone triad molecules which mimic all of these natural processes.

• Research Organization: Arizona State Univ., Tempe
• DOE Contract Number: FG02-84CH10198
• OSTI ID: 5364665
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 108:17; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
ABSORPTION SPECTROSCOPY
AROMATICS
CAROTENOIDS
CHARGE DISTRIBUTION
CHEMICAL PREPARATION
CHEMICAL REACTIONS
DATA
EFFICIENCY
ELECTRON TRANSFER
ENERGY TRANSFER
EXPERIMENTAL DATA
HYDROCARBONS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PIGMENTS
QUANTUM EFFICIENCY
QUINONES
SPECTROSCOPY
SYNTHESIS
TERPENES