含咔唑基的苯并噻唑类铱配合物的合成及其光学性能  

Synthesis and Photophysical Properties of Cyclometalated Iridium(Ⅲ) Complexes Based on Benzothiazole Derivatives Containing Carbazole

作　　者：刘栋[1] 王鹏江[1] 杨建明[1] 左晶[1] 钮智刚[1] 李高楠[1] 

机构地区：[1]海南师范大学化学与化工学院,海南海口571158

出　　处：《合成化学》2014年第6期767-770,共4页Chinese Journal of Synthetic Chemistry

基　　金：海南省教育厅基金资助项目(Hjkj2013-25);海南师范大学校级青年基金项目(QN1337);海南师范大学国家级大学生创新创业训练计划项目(201311658021;201311658023)

摘　　要：以2-溴咔唑为原料,经烷基化、Suziki偶联和环化3步反应合成了新型的环金属配体2-[4-(9-乙基-9H-咔唑-2-基)苯基]苯并噻唑(3);3与三氯化铱和N^N辅助配体(2,2'-联吡啶和1,10-菲啰啉)解离合成了两个新型的离子型环金属铱配合物(5a)和(5b),其结构经1H NMR和ESI-MS表征。用UV-Vis和FL研究了5a和5b的发光性能。结果表明:5a和5b的二氯甲烷溶液为绿色磷光,λex分别为295 nm,450 nm和270 nm,400 nm;λem为570 nm。A novel cyclometalated ligand,2-[4-（ 9-ethyl-9H-carbazol-2-yl） phenyl]benzo[d]thiazole（ 3）,was prepared by a three-step reaction of alkylation,Suzuki coupling and cyclation from 2-bromo-9H-carbazole. Two novel cyclometalated iridium（Ⅲ） complexes（ 5a and 5b） were synthesized by reaction of 3 with iridium trichloride and N ^ N typical assistant ligands（ 2,2＇-bipyridine,1,10-phenanthroline）. The structures and photophysical properties were characterized by^1 H NMR,ESIMS,UV-Vis and FL. The results showed that λexof 5a and 5b were 295 nm,450 nm and 270 nm,400 nm,respectively; λemwas 570 nm in CH2Cl2.

关 键 词：环金属铱(III)配合物 咔唑 合成 发光性能 

分 类 号：O626.25[理学—有机化学] O614.81[理学—化学]