摘要
简要介绍了作者研制的高时间分辨电子自旋共振 (TRESR)波谱仪的结构与特点 .报道了均相与微复相体系中光解自由基的自旋极化 (CIDEP) :在TX10 0表面活性剂胶束中 ,获得了醌 (萘醌、苯醌、蒽醌 )负离子基 ;在层状液晶中观察到二苯甲酮的自旋相关自由基极化 ;在对苯醌的乙二醇 /水 /硫酸溶液中 ,观察到苯醌自由基与溶液中质子发生交换效应 .综述了TRESR在光诱导极化与光诱导电子转移研究方面的应用 .
The construction of a time resolved electron spin resonance(TRESR)spectrometer with high time resolution and its features are described. The chemically induced dynamic electron polarization of photolized radicals in homogeneous solvents and microhetero geneous phase systems are reported.In an ethylene glycol solution with surfactant TX100,quinone (naphthoquinone, anthraquinone, p benzoquinone) anions were obtained; in the dodecanol polyerhenoxy ether/isopropanol/C 8H 18 liquid crystal system, spin correlated radical pair polarization of the benzophenone radical was obtained. In the benzoquinone/ethylene glycol/water/sulphric acid system, the proton exchange effect between the benzoquinone radical and proton in the solution was observed. Application of the TRESR spectrometer to laser induced polarization and laser induced electron transfer are reviewed briefly.
出处
《物理》
CAS
2000年第6期369-373,共5页
Physics
基金
中国物理学会第六届胡刚复物理学奖获奖项目
关键词
时间分辨ESR
光解自由基
微复相体系
波谱仪
time resolved ESR,photolysis radical, microhetero geneous phase systems, proton exchange,laser induced electron transfer
