申请人:Universal Display Corporation
公开号:US10003034B2
公开(公告)日:2018-06-19
A compound having the structure of formula I:
is described. In formula I, A1, A2, A3, A4, A5, A6, A7, and A8 can be carbon or nitrogen; at least one of A1, A2, A3, A4, A5, A6, A7, and A8 being nitrogen; X is a neutral donor;
is a monoanionic bidentate ligand; n is an integer from 1 to 3; ring B is bonded to ring A through a C—C bond; and ring A is bonded to the iridium through a Ir—C bond. In addition, R1, R2, R3, R4, and R6 are independently selected from hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrite, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof. Also described are formulations and devices, such as an OLEDs, that include the compound of formula I.
具有式 I 结构的化合物:
的化合物。在式 I 中,A1、A2、A3、A4、A5、A6、A7 和 A8 可以是碳或氮;A1、A2、A3、A4、A5、A6、A7 和 A8 中至少有一个是氮;X 是中性供体;
是单阴离子双齿配体;n 是 1 至 3 的整数;环 B 通过 C-C 键与环 A 结合;环 A 通过 Ir-C 键与铱结合。此外,R1、R2、R3、R4 和 R6 独立选自氢、氘、卤化物、烷基、环烷基、杂烷基、芳烷基、烷氧基、芳氧基、氨基、硅烷基、烯基、环烯基、杂烯基、炔基、芳基、杂芳基、酰基、羰基、羧酸、酯、亚硝酸盐、异腈、硫酰基、亚砜基、磺酰基、膦基及其组合。还描述了包括式 I 化合物的制剂和设备,如有机发光二极管。