The application regards heteroleptic iridium complexes, devices containing the same such as e.g. LED and OLED devices. Formulations including such complexes are described. The complexes can have the formula Ir(L1)n(L2)3-n, wherein the first ligand L1 has Formula I, the second ligand L2 has Formula II,
L1 is different from L2; R1 is a partially or fully deuterated group consisting of alkyl and cyloalkyl.
The other variables are as defined in the claims.
A representative example from the application is compound 10, illustrating the generation of the heteroleptic complexes:
本申请涉及异性
铱络合物以及含有此类
铱络合物的设备,例如 LED 和 OLED 设备。本申请描述了包含此类络合物的配方。这些配合物可具有 Ir(L1)n(
L2)3-n 式,其中第一
配体 L1 具有式 I,第二
配体 L2 具有式 II、
L1 与
L2 不同;R1 是由烷基和环烷基组成的部分或完全氚代基团。
其他变量如权利要求中所定义。
本申请中一个具有代表性的例子是化合物 10,它说明了异性配合物的生成: