- 作者: Tsunashima, Katsuhiko ; Nonaka, Tsutomu
- 作者服務機構: Dept. of Electronic Chemistry, Tokyo Inst. of Technology, Yokohama, Japan
- 中文摘要: Electrochemical reduction of benzyl halides on various cathodes was examined under illumination and in the dark. Product selectivity control in the reduction by illumination was accomplished only when p-type semiconductor photocathodes were used. By estimating the electrophilicity of benzyl halides from their rate constants for methanolysis under illumination and in the dark, it was proposed that the mechanism for the selectivity control by illumination involves a photo- assisted process for the nucleophilic attack of carbanion intermediate species formed by the two-electron reduction of the benzyl halides to the unreacted ones as electrophiles.
- 英文摘要: --
- 中文關鍵字: Photoelectrochemical Reduction; Benzyl Halide; Photocathode; Illumination; Semiconductor
- 英文關鍵字: 光電化學還原;苯基鹵素;光電陰極;光照度;半導體