超分子システムにおける光誘起電子移動反応

抄録

Electron transfer (ET) reactions play a central role in both photosynthesis and respiratory oxidative phosphorylation. They occur in nature with remarkably high efficiency, but attempts to duplicate them in homogeneous solutions consisting of metalloporphyrins and appropriate donor and acceptor molecules have not been successful. In order to obtain a better understanding of the exact nature of specific partner-to-partner ET processes and to be able to duplicate them in vitro, the research has focussed on the more complicated “supramolecular” model systems. In the light of the previous studies, the roles of electric fields and non-covalent pathways in mediating long-range ET reactions were studied. Multi-component arrays with improved charge separating capabilities were prepared, and these species may find application in new charge separating devices. This review summarizes some recent progress in this rapidly growing field.