申请人:Universal Display Corporation
公开号:US11535797B2
公开(公告)日:2022-12-27
A compound having a Pt tetradentate structure of Formula 1,
is provided. In the structure of Formula 1, rings C and D each independently represent 5- or 6-membered carbocyclic or heterocyclic ring; L
1
, L
2
, and L
3
are each independently a direct bond, BR, NR, PR, O, S, Se, C═O, S═O, SO
2
, SiRR′, GeRR′, alkyl, cycloalkyl, or a combination thereof; the sum of n1 and n2 is 1 or 2; X is selected from NR
E
, O, S, and Se; X
3
and X
4
each independently carbon or nitrogen; and one of Q
1
, Q
3
, and Q
4
is oxygen, and the remaining two of Q
1
, Q
3
, and Q
4
each represents a direct bond. Formulations and devices, such as an OLEDs, that include the compound of Formula 1 are also described.
提供了一种具有式 1、
的化合物。在式 1 的结构中,环 C 和 D 各自独立地代表 5 或 6 元碳环或杂环;L
1
, L
2
和 L
3
各自独立地为直接键、BR、NR、PR、O、S、Se、C═O、S═O、SO
2
SiRR′、GeRR′、烷基、环烷基或它们的组合;n1 和 n2 之和为 1 或 2;X 选自 NR
E
、O、S 和 Se; X
3
和 X
4
各自独立地为碳或氮;以及 Q
1
, Q
3
和 Q
4
是
氧气,其余两个 Q
1
, Q
3
和 Q
4
各自代表一个直接键。此外,还描述了包括式 1 化合物的制剂和设备,如 OLED。