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用脉冲辐解技术研究了水溶液中的9,10-菲醌(PhQ)单电子还原性质,给出了PhQ半醌阴离子和中性自由基的吸收光谱,中性自由基的酸解离常数,以及PhQ的单电子还原电位。还研究了PhQ半醌自由基的生成动力学,获得了水化电子和异丙醇自由基与PhQ反的二级速率常数。同时还获得了PhQ半醌自由基的衰变速率常数。
The single-electron reduction of 9,10-phenanthrenequinone (PhQ) in aqueous solution was studied by pulsed radiolysis. The absorption spectra of PhQ semi-quinone anion and neutral radical, acid dissociation constants of neutral radical, As well as the single electron reduction potential of PhQ. The kinetics of the formation of PhQ semiquinone free radicals was also studied, and the second order rate constants of hydrated electrons and isopropanol radicals with PhQ were obtained. At the same time, the decay rate constant of PhQ semiquinone radical was also obtained.