申请人:Universal Display Corporation
公开号:US20150380666A1
公开(公告)日:2015-12-31
Compounds having the structure of Formula M(L
A
)
x
(L
B
)
y
and Formula III,
are disclosed. In Formula M(L
A
)
x
(L
B
)
y
, Ligand L
A
is
and ligand L
B
is a mono anionic bidentate ligand. In these compounds, metal M has an atomic number greater than 40; x is 1, 2, or 3; y is 0, 1, or 2; x+y is the oxidation state of metal M; L
11
represents a linking group selected from alkyl, cycloalkyl, aryl, and heteroaryl; L
12
represents a linking group selected from NR
15
and PR
15
; each R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
11
, R
12
, R
13
, R
14
, and R
15
is independently selected from a group of substituents, wherein any adjacent substituents are optionally joined to form a fused or unfused ring; and L
A
and L
B
are optionally joined to form a ligand that is at least tetradentate. Formulations and devices, such as OLEDs, that include the compound of Formula M(L
A
)
x
(L
B
)
y
are also described.
揭示了具有Formula M(LA)x(LB)y和Formula III结构的化合物。在Formula M(LA)x(LB)y中,配体LA和配体LB分别是单阴离子双齿配体。在这些化合物中,金属M的原子序数大于40;x为1、2或3;y为0、1或2;x+y为金属M的氧化态;L11代表从烷基、环烷基、芳基和杂环烷基中选择的连接基;L12代表从NR15和PR15中选择的连接基;每个R1、R2、R3、R4、R5、R6、R11、R12、R13、R14和R15都是从一组取代基中独立选择的,其中任何相邻的取代基可以选择连接以形成融合或非融合环;LA和LB可以选择连接以形成至少四齿配体。还描述了包括Formula M(LA)x(LB)y化合物的配方和器件,例如OLEDs。