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本文用自由基捕捉技术与ESR相结合的方法对五种PQ~(++)—异丙醇体系的光激发均相电子转移过程的研究结果表明PQ~(++)可被异丙醇自由基单电子还原生成PQ~+·自由基,如体系中有二苯酮存在,则电子转移反应速率大大增加.
In this paper, the results of the photo-excited homogeneous electron transfer of five PQ ~ (++) -isopropanol systems by the combination of free radical trapping and ESR show that PQ ~ (++) can be freely isopropanol The generation of PQ ~ + radicals by the reduction of single electron, such as the presence of benzophenone in the system, greatly increases the electron transfer reaction rate.