一种新型离子型铱配合物的合成及其光物理性能表征  

Synthesis,Characterization and Light-Physical Property of a Novel Ionic Type Iridium Complex

作　　者：晏彩先[1] 李杰[1] 姜婧[1] 刘伟平[1] 叶青松[1] 余娟[1] 常桥稳[1] YAN Caixian;LI Jie;JIANG Jing;LIU Weiping;YE Qingsong;YU Juan;CHANG Qiaowen(State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Precious Metals, Sino-PlatinumMetals Co. Ltd., Kunming Institute of Precious Metals, Kunming 650106)

机构地区：[1]昆明贵金属研究所,贵研铂业股份有限公司,稀贵金属综合利用新技术国家重点实验室,昆明650106

出　　处：《材料导报》2018年第A02期126-129,共4页Materials Reports

基　　金：云南省基础研究计划项目(2017FD212;2017FB141);云南省省院省校科技合作项目(2015IB019);昆明市科技计划项目(2016-1-G-03331)。

摘　　要：以氯桥二聚体(ppy)2Ir(μ-Cl2)Ir(ppy)2、4,4′-二溴-2,2′-联吡啶和六氟磷酸钠为原料合成了一种新型离子型铱配合物[Ir(ppy)2(Br2bpy)]+PF6-,产率90%。采用元素分析、红外光谱、核磁谱以及质谱表征确认了目标产物的结构,并考察了其光物理性能。结果发现,配合物[Ir(ppy)2(Br2bpy)]+PF6-在630nm处具有很强的红光发射光谱。并采用溶剂缓慢挥发法培养出[Ir(ppy)2(Br2bpy)]+PF6-的单晶,X射线单晶衍射仪对其结构进行了表征,获得了晶体结构参数,结果表明配合物为正交晶系,P212121空间群。A new chemical technique was developed for batch synthesis of ionic iridium(Ⅲ)complex[Ir(ppy)2(Br2bpy)]+-PF6-,an organometallic light-emitting molecule for OLED.The process involved cycometalation of chloride-bridged dimer(ppy)2Ir-(μ-Cl2)Ir(ppy)2 with 4,4′-dibromo-2,2′-bipyridine by hexafluorophosphate acid to produce the desired compound in a batch scale.The yield was more than 90%.The chemical structure of[Ir(ppy)2(Br2bpy)]+PF6-was verified by elemental analysis,FT-IR,NMR(1 H and 13 C)and MS.Photophysical property of this complex was investigated.Single crystals of complex was prepared via a solvent evaporation technique,and was subjected to X-ray diffraction analysis.The results show the complex is in the orthorhombic system with a space group of P212121.A strong red-emission at 630 nm was observed in photoluminescent spectrum of the compound.

关 键 词：离子型铱配合物 晶体结构 合成 光物理性能 

分 类 号：O614.8[理学—无机化学] O644.1[理学—化学]