申请人:Xia Chuanjun
公开号:US20140054563A1
公开(公告)日:2014-02-27
Phosphorescent materials are provided, where the materials comprise a coordination compound having at least one ligand L
3
having Formula (I):
wherein A and B are each independently a 5-membered or 6-membered carbocyclic or heterocyclic ring; wherein R
A
, R
B
, R
C
, and R
D
each represent mono, di, tri, tetra substitutions, or no substitution; wherein Z
1
, Z
2
, Z
3
, Z
4
, Z
5
, Z
6
, Z
7
, and Z
8
are each selected from N or C; wherein at least one of Z
1
, Z
2
, Z
3
, Z
4
, Z
5
, Z
6
, Z
7
, and Z
8
is N; wherein one of Z
1
, Z
2
, Z
3
, and Z
4
is C that is bonded to N of A; wherein Z is selected from the group consisting of BR, NR, PR, O, S, Se, C═O, S═O, SO
2
, CRR′, SiRR′, and GeRR′; wherein R, R′, R
A
, R
B
, R
C
, and R
D
are described herein; wherein L
3
is coordinated to a metal M
1
; and wherein L
3
may be linked with other ligands to comprise a tridentate, tetradentate, pentadentate, or hexadentate ligand. Devices, such as organic light emitting devices, comprising such compounds are also provided.
本发明提供了荧光材料,其中该材料包括至少具有一个配体L3的配位化合物,该配体L3具有以下式子(I):
其中A和B各自独立地是5元或6元的碳环或杂环;RA、RB、RC和RD各自表示单、双、三、四取代或无取代;Z1、Z2、Z3、Z4、Z5、Z6、Z7和Z8各自选自N或C;其中至少有一个Z1、Z2、Z3、Z4、Z5、Z6、Z7和Z8是N;其中Z1、Z2、Z3和Z4中的一个是与A的N相结合的C;其中Z选自BR、NR、PR、O、S、Se、C═O、S═O、SO2、CRR′、SiRR′和GeRR′的群;其中R、R′、RA、RB、RC和RD如上所述;其中L3与金属M1配位;其中L3可以与其他配体连接以形成三齿、四齿、五齿或六齿配体。本发明还提供了包括此类化合物的器件,例如有机发光器件。