A compound having the formula Ir(LA)(LB), where LA has a structure of Formula I
and LB is a bidentate ligand is disclosed. In the structure of Formula I, rings A, B, C, and D are each independently 5- or 6-membered carbocyclic or heterocyclic rings; each of Z1 to Z8 is C or N; LA has at least one Ir—C bond; L is CR or N; each R1 R2, R3, and R4 is independently hydrogen or one of the preferred general substituents; and any two substituents may be joined or fused together to form a ring. Organic light emitting devices, consumer products, and formulations containing the compounds are also disclosed.
一种具有式 Ir(
LA)(LB) 的化合物,其中
LA 具有式 I 的结构
和 LB 是双叉
配体的化合物。在式 I 的结构中,环 A、B、C 和 D 各自独立地为 5 或 6 元碳环或杂环;Z1 至 Z8 中的每个均为 C 或 N;
LA 具有至少一个 Ir-C 键;L 为 CR 或 N;R1 R2、R3 和 R4 各自独立地为氢或优选的一般取代基之一;任意两个取代基可连接或融合在一起形成一个环。此外,还公开了含有这些化合物的有机发光器件、消费品和配方。