Synthesis, Photophysical and Electrophosphorescent Properties of Fluorene-Based Platinum(II) Complexes
作者:Mai-Yan Yuen、Steven C. F. Kui、Kam-Hung Low、Chi-Chung Kwok、Stephen Sin-Yin Chui、Chun-Wah Ma、Nianyong Zhu、Chi-Ming Che
DOI:10.1002/chem.201001570
日期:2010.12.17
3IL/3MLCT parentage (IL=intraligand, MLCT=metal‐to‐ligand charge transfer). The crystal structures of these platinum(II) complexes reveal extensive PtII⋅⋅⋅π and/or π–π interactions. The fluorene‐based platinum(II) complexes are soluble in organic solvents, have high thermal stability with decomposition temperature >350 °C, and can be thermally vacuum‐sublimed or solution‐processed as phosphorescent dopants
一系列带有三齿环金属化C ^ N ^ N(C ^ N ^ N = 6-苯基-2-2,2'-联吡啶和π-扩展R‐C ^ N ^ N = 3- [6'已经合成了具有芴单元的(萘2''-基)吡啶2-2'-基]异喹啉)配体,并研究了它们的光物理性质。芴单元通过Suzuki偶联反应结合到环金属化的配体中。与6-苯基-2,2'-联吡啶类似物相比,环金属化配体的π共轭增加具有良好的光物理性质。上述芴系铂(II)配合物显示与电子振动结构的发射波段λ最大在脱气二氯甲烷= 558-601纳米,和高发射量子产率高达0.76。3 IL / 3 MLCT亲本(IL =配体,MLCT =金属到配体的电荷转移)。这些铂的晶体结构(II)络合物揭示广泛的Pt II ⋅⋅⋅π和/或π-π相互作用。芴基铂(II)配合物可溶于有机溶剂,具有高的热稳定性,分解温度> 350°C,可以进行热真空升华或固溶处理为磷光掺杂剂,用于