热延迟荧光(TADF)光敏剂的设计合成及其光催化脱卤反应性能研究  

Design and Synthesis of Thermal Delayed Fluorescence(TADF)Photocatalyst and Its Photocatalytic Dehalogenation Performance

作　　者：刘亚鑫 张渔 罗书平[1] Liu Yaxin;Zhang Yu;Luo Shuping(College of Chemical Engineering,Zhejiang University of Technology,Hangzhou 310014)

机构地区：[1]浙江工业大学化学工程学院,杭州310014

出　　处：《有机化学》2023年第7期2476-2483,共8页Chinese Journal of Organic Chemistry

基　　金：国家自然科学基金(No.21376222);浙江省自然科学基金(No.LY18B060011)资助项目.

摘　　要：以提高光催化效率为目的,设计并合成了一种三咔唑基苯二腈类的热延迟荧光(TADF)光催化剂,建立了在室温下光诱导的芳基卤代物的脱卤反应体系,以TADF为光催化剂,二硫醚为氢转移催化剂,不同的有机卤化物(包括C—Br键和C—Cl键)都可以实现脱卤,且能得到中等至优异的产量.相较于热延迟荧光材料的代表2,4,5,6-四(9H-咔唑-9-基)异酞腈(4CzIPN),设计合成的4-(N,N-二甲氨基)-3,5,6-三(9-咔唑基)邻苯二腈(3CzDMAPN)具有更高催化效率和专一性.In order to improve the photocatalytic efficiency,a kind of thermal delayed fluorescence(TADF)photocatalyst of tricarbazolyl phthalonitrile was designed and synthesized.A system for the dehalogenation of aryl halohydrocarbons was established,using TADF material as photocatalyst and disulfide as hydrogen transfer catalyst.Different organic halides(including C—Br bonds and C—Cl bonds)can be dehalogenated with moderate to excellent yields.Compared with 2,4,5,6-tetrakis-(carbazol-9-yl)-1,3-dicyanobenzene(4CzIPN),the representative thermal delayed fluorescent material,4-(N,N-dimethylamino)-3,5,6-tri(9-carbazolyl)phthalonitrile(3CzDMAPN)has higher catalytic efficiency and specificity.

关 键 词：光催化 脱卤 热延迟荧光(TADF) 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学]