β二酮类化合物与四氯苯醌的光诱导CIDNP研究  

PHOTO-CIDNP INVESTIGATION OF β-DIKETONES WITH CHLORANIL

作　　者：郭洪玲[1] 严宝珍[1] 王命财[1] 

机构地区：[1]北京化工大学理学院,北京100029

出　　处：《感光科学与光化学》2003年第2期95-100,共6页Photographic Science and Photochemistry

基　　金：国家自然科学基金资助项目(29975002)

摘　　要：本文研究了β二酮类化合物与四氯苯醌在C6D6中的光诱导CIDNP现象.实验结果表明,β二酮类化合物与四氯苯醌在C6D6中主要是四氯苯醌夺氢的反应.氢供体是由β二酮类化合物的主要存在形式来决定的.The reactions of three βdiketones with chloranil in C6D6 under UV irradiation were investigated by the chemically induced dynamic nuclear polarization(CIDNP).The results show that a hydrogen abstraction interaction between chloranil and βdiketones was involved. As a result, singlet multiplicity stable neutral radical pairs(RP) were formed, as intermediates,producing CIDNP polarizations.RP recombined to develop the new OH group of phenol polarizations of the recombination compounds.

关 键 词：β二酮类化合物 四氯苯醌 CIDNP 

分 类 号：O644[理学—物理化学]