Construction of nano-sized molecular wiring system for generating hydrogen from water using solar energy

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The purpose of this study is construction of an artificial photosynthetic system. Especially, hydrogen generation from water using sun light is goal. Preventing a backward electron transfer is important in the primary stage on the photosynthesis. In the natural photosynthetic system, donors and acceptors were arranged in their best position with potential cascade in order to prevent backward electron transfer. However, it is difficult to construct artificially the donors and acceptors system. In this study, long-range inter-phase photoinduced electron transfer was attempted by using step-pi-conjugated amphiphilic polymer as macromolecular wire. Fluorescence data show that the amphiphilic polymer exists across a micelle and long-range inter-phase photoinduced electron transfer occurs.