设计了新的三苯胺树枝状均化的Ir(III)配合物,分别为Ir-G1,Ir-G2和Ir-G3,分别具有六个,十八个和多达二十二个三苯胺单元,并通过收敛策略有效地合成了它们。树状臂的线性扩大和“双树状”策略都可以使发光中心的位点隔离程度最大化。研究了树枝状结构与其光物理,电化学和电致磷光性能之间的关系。制备了采用树枝状聚合物作为溶液处理的发射极的磷光有机发光二极管(PhOLED)。具有Ir-G1和Ir-G2的非掺杂器件因为发射器显示出很高的效率,效率下降的值很小。例如,以Ir-G1作为发射体的器件在溶液处理的橙色磷光器件中表现出最好的结果,其最大发光效率为40.9 cd A –1,功率效率为39.5 lm W –1。此外,通过将Ir-G1掺杂到普通聚合物基体中,非掺杂器件的最大功率效率比掺杂控制器件的最大功率效率高将近三倍。这表明将三苯胺部分掺入铱(III)核的球体是开发高效无主体树枝状磷光体的简单有效的方法。
[Problem] To provide a method for producing a triarylamine compound in which the reaction can be attained under a practical condition, the purification operation after the reaction is simple, the environmental burden is reduced and the production efficiency is high.
[Means for Resolution] A method for producing a triarylamine compound through amination of a diarylamine compound and an aryl halide, wherein a catalyst comprising a salt of an imidazolium derivative represented by the following general formula (1) and a palladium compound is used, as combined with a base and a solvent to coexist therein.