一个新颖多功能阳离子型有机铱(Ⅲ)配合物的合成及性能研究  

Synthesis and properties of a novel multifunctional cationic organic iridium(Ⅲ)complex

作　　者：王羽虹 唐怀军 魏丽莹 孟国云 杨锴辛 焦玉祥 李文耀 秦静 WANG Yu-hong;TANG Huai-jun;WEI Li-ying;MENG Guo-yun;YANG Kai-xin;JIAO Yu-xiang;LI Wen-yao;QIN Jing(School of Chemistry and Environment,Yunnan Minzu University,Kunming 650503,China)

机构地区：[1]云南民族大学化学与环境学院,云南昆明650503

出　　处：《云南民族大学学报（自然科学版）》2022年第6期638-643,共6页Journal of Yunnan Minzu University:Natural Sciences Edition

基　　金：国家自然科学基金(21762049,21262046).

摘　　要：合成了1个包含多个有机功能基团的新颖阳离子型有机铱(Ⅲ)配合物,功能基团具体包括咔唑、1,2,4-三唑、1,10-菲啰啉和噁二唑等载流子传输功能基团,以及2-乙基己基、叔丁基等提升溶解性和成膜性的功能烷基.该配合物的CH _(2)Cl_(2)溶液(1.0×10^(-5 )mol/L)主要发射最大波长(λem,max)为527 nm的绿光,其粉末主要发射λem,max为554 nm的黄绿光.电化学测试显示其最高占据轨道(HOMO)和最低空轨道(LUMO)的能级分别为-5.66和-3.00 eV,相应能隙宽度(E_(g))为2.66 eV,且具有较高的电化学氧化还原稳定性.其热分解温度(T_(d))和玻璃化转变温度(T_(g))分别高达383和187℃,具有较高的热稳定性.总的结果显示该配合物可适用于发光电化学池、有机/无机发光二极管等多个发光领域.A novel cationic organic iridium(Ⅲ)complex containing several organic functional groups was synthesized.Carrier-transporting functional groups including carbazole,1,2,4-triazole,1,10-phenanthroline and oxadiazole,as well as functional alkyl groups for improving solubility and film-forming including 2-ethylhexyl and tert-butyl were introduced in the complex.The complex in CH 2Cl 2 solution(1.0×^(-5) mol/L)emitted green light with the maximum emission wavelength(λem,max)of 527 nm,its powders emitted yellow-green light with theλem,max of 554 nm.By electrochemical measuring,the energy levels of the highest occupied molecular orbital(HOMO)and the lowest unoccupied molecular orbital(LUMO)of the complex were identified as-5.66 and-3.00 eV,the corresponding energy gap was 2.66 eV,moreover,the complex showed high electrochemical redox stability.Its thermal decomposition temperature(T_(d))and glass transition temperature(T_(g))were as high as 383 and 187℃respectively,which suggested the complex have high thermal stability.The overall results showed that the complex can be applied to many light-emitting fields such as light-emitting electrochemical cells,organic/inorganic light-emitting diodes.

关 键 词：阳离子型有机铱(Ⅲ)配合物 咔唑 1 2 4-三唑 1 10-菲啰啉 噁二唑 光致发光 循环伏安法 

分 类 号：O614.8[理学—无机化学]