三乙胺与2-氯-5-甲氧基对苯醌光电子转移反应的CIDNP研究  

Photo-CIDNP Study of Electron Transfer Reaction of Triethylamine with 2-Chloro-5-methoxy-p-benzoquinone

作　　者：郭洪玲[1] 严宝珍[1] 郭小永[1] 

机构地区：[1]北京化工大学理学院,北京100029

出　　处：《有机化学》2003年第3期288-290,共3页Chinese Journal of Organic Chemistry

基　　金：国家自然科学基金 (No.2 99750 0 2 )资助项目

摘　　要：用化学诱导动态核极化 (CIDNP)方法研究了三乙胺与 2 氯 5 甲氧基对苯醌在C6 D6 ,CD3CN溶剂中的反应机理 ,实验结果表明反应过程中首先形成基态电荷转移络合物 (CTC) ,在CD3CN中 ,光照电荷分离形成离子自由基对 ,使三乙胺亚甲基产生发射极化信号 .同时用UVThe mechanisms for the reaction of triethylamine with 2-chloro-5-methoxy-p-benzoquinone in different solvents under UV irradiation were investigated by the chemically induced dynamic nuclear polarization (CIDNP). The results showed that the charge transfer complex (CTC) was first formed and then charge separation occurred to produce ion radical pairs. The back electron transfer caused the methylene of triethylamine to give emission CIDNP polarization. The UV-via experiment confirmed the existence of CTC as well.

关 键 词：CIDNP 电荷转移络合物 反应机理 光化学 三乙胺 2-氯-5-甲氧基对苯醌 光电子转移反应 

分 类 号：O621.25[理学—有机化学]