申请人:UNIVERSAL DISPLAY CORPORATION
公开号:US11325932B2
公开(公告)日:2022-05-10
A compound of Formula I or Formula II
wherein
Y is selected from the group consisting of O, S, and NRN; and
(a) L1 and L2 are the same or different and are each a mono-anionic bidentate ligand; and R is selected from the group consisting of hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; or
(b) R joins with L1 of the Formulae I or II to form a ring B1 of formula B and formula C, respectively, and L2 is L3 and L3 is a tridentate ligand of formula D
wherein
ring C, ring D, and ring E are each independently selected from the group consisting a 5-membered aryl, a 5-membered heteroaryl, a 6-membered aryl, and a 6-membered heteroaryl;
X1 to X4 are independently selected from C or N, and no more than two of the X1 to X4 is N;
Z1 to Z7 are independently selected from C or N; wherein one of Z1, Z4, and Z7 is an anionic donor, and the remaining two are neutral donors; wherein Z2 and Z3 are not both N, and Z5 and Z6 are not both N; and the dotted lines represent coordination to the iridium;
wherein each RA to RE represents mono to the maximum allowable substitution, or no substitution; and
each RA to RE is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof, wherein any two adjacent substituents RA to RE are optionally joined to form a fused ring.
式 I 或式 II 的化合物
其中
Y 选自 O、S 和 NRN 所组成的组;以及
(a) L1 和 L2 相同或不同,且各自为单阴离子双齿配体;R 选自氢、氘、卤素、烷基、环烷基、杂环烷基、杂环烷基、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、羧酸、醚、酯、腈、异腈、硫酰基、亚砜基、磺酰基、膦及其组合;或
(b) R 与式 I 或式 II 中的 L1 连接,分别形成式 B 和式 C 的环 B1,且 L2 是 L3,L3 是式 D 的三叉配体
在其中
环 C、环 D 和环 E 各自独立地选自由 5 元芳基、5 元杂芳基、6 元芳基和 6 元杂芳基组成的组;
X1 至 X4 独立选自 C 或 N,且 X1 至 X4 中不超过两个为 N;
Z1至Z7独立选自C或N;其中Z1、Z4和Z7中的一个是阴离子供体,其余两个是中性供体;其中Z2和Z3并非都是N,Z5和Z6并非都是N;虚线代表与铱的配位;
其中每个 RA 至 RE 表示单取代至最大允许取代量,或不取代;以及
每个 RA 至 RE 独立地为氢或选自以下组别的取代基:氘、卤素、烷基、环烷基、杂烷基、杂环烷基、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、羧酸、醚、酯、杂环烷基、杂环炔基、杂环芳基、杂芳基、酰基、羧酸、醚、酯、硅烷基、炔基、芳基、杂芳基、酰基、羧酸基、醚基、酯基、腈基、异腈基、硫酰基、亚磺酰基、磺酰基、膦基及其组合,其中 RA 至 RE 的任意两个相邻取代基可选择连接形成一个融合环。