Influence of Large Magnetic Fields on the Dynamic Behavior of a Radical Pair Produced by Photoreduction of Benzophenone in a Micellar Solution
作者:Yoshio Sakaguchi、Hisaharu Hayashi
DOI:10.1246/cl.1993.1183
日期:1993.7
The photochemical reaction of benzophenone in a micellar sodium dodecylsulfate solution was investigated under magnetic fields of 0–10 T. The decrease of decay rate of the ketyl radical and the increase of the yield of the escaped radical were saturated around 2 T. The contribution of the Δg mechanism was not observed below 10 T since the Δg value is very small for this system.
在 0-10 T 的磁场下研究了二苯甲酮在胶束十二烷基硫酸钠溶液中的光化学反应。在 2 T 左右饱和了羰基自由基衰变率的降低和逃逸自由基产率的增加。低于 10 T 时未观察到 Δg 机制,因为该系统的 Δg 值非常小。
Laser photolysis studies on hydrogen atom abstraction by triplet benzophenone from hydroxyanilinium ions
By means of 355 nm laser flash photolysis in the benzophenone-hydroxyanilinium ion system in acetonitrile-H2O (1 : 1, v/v) with [H2SO4] = 0.18 M, it is found that the products of H-atom abstraction by triplet benzophenone from hydroxyanilinium ion are the benzophenone ketyl and hydroxyaniline cation radicals, i.e. the NH3+ group is more reactive to H-atom abstraction by triplet benzophenone than the