Homoleptic Iridium(III) Compounds Bearing Bulky Bipyridine Ligand for Potential Application to Organic Light-emitting Diodes
作者:Myeongbee Kim、Joohye Park、Hoonseok Oh、Yeonjin Ryu、Youngjin Kang
DOI:10.1002/bkcs.11334
日期:2018.1
Two sky‐blue phosphorescent iridium compounds, fac‐tris(2′,6′‐diisopropoxy‐2,3′‐bipyridinato)‐N,C 4)Ir(III) (1) and fac‐tris(2′,6′‐diisopropoxy‐4‐tert‐butyl‐2,3′‐bipyridinato)‐N,C 4)Ir(III) (2), were synthesized by a one‐pot reaction of a reactive Ir(I) compound with a corresponding bipyridine ligand, to investigate their photophysical and electrochemical properties for potential application to white
两种天蓝色磷光铱化合物,fac- tris(2',6'-diisopropoxy-2,3'-bipyridinato)-N,C 4)Ir(III)(1)和fac- tris(2',6' -二异丙氧基-4-叔丁基-2,3'-联吡啶并)-N,C 4)Ir(III)(2 )是通过反应性Ir(I)化合物与相应的联吡啶配体的单锅反应合成的,旨在研究其光物理和电化学性质,以潜在地应用于白色有机发光二极管(WOLED)。通过各种光谱学方法证实了它们的结构。结果表明这两种化合物都具有面部几何形状。还对吸收,发射,热稳定性和电化学性质进行了系统研究。两种化合物均显示出天蓝色发射,λmax = 462–463 nm;它们相对于FIrpic的光致发光量子效率约为0.3-0.4。化合物2具有大取代基的化合物显示出在高浓度时抑制浓度淬灭的作用,并且与化合物1相比,其发射向较长波长的移动较少。由于庞大的取代基,2的