MODEL REACTIONS FOR PHOTOSYNTHESIS-PHOTOINDUCED CHARGE AND ENERGY-TRANSFER BETWEEN COVALENTLY-LINKED PORPHYRIN AND QUINONE UNITS

被引:539
作者
KURRECK, H
HUBER, M
机构
[1] Institut für Organische Chemie der Freien Universität, Berlin, D-14195
关键词
ELECTRON TRANSFER; ENERGY TRANSFER; PHOTOSYNTHESIS; PORPHYRINS; QUINONES;
D O I
10.1002/anie.199508491
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Photosynthesis is one of the fascinating fields of current interdisciplinary research. It seems miraculous that nature, in the process of evolution, has managed to bring about the process of photosynthesis. The first step involves a charge separation at the reaction centers, which proceeds with 100% quantum yield from the photoexcited singlet state of the bacteriochlorophyll donor, despite the fact that the wasteful deactivation of the electron into the ground state should be highly favored. Biomimetic model compounds (that is, those which resemble the pigments nature has developed) have been constructed from porphyrins and quinones. These model systems have allowed the study of the factors contributing to the highly efficient charge separation. This report focuses on recent developments in the study of electron transfer in porphyrinoquinones. Some of the results of these investigations may not be not fully understood and are often the subject of controversial discussions. Copyright © 1995 by VCH Verlagsgesellschaft mbH, Germany
引用
收藏
页码:849 / 866
页数:18
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