申请人:Universal Display Corporation
公开号:US20150315222A1
公开(公告)日:2015-11-05
A compound that has the structure according to Formula M(L
A
)
x
(L
B
)
y
(L
C
)
z
:
wherein ligand L
A
is
ligand L
B
is
and
ligand L
C
is
and devices and formulations containing these compounds are disclosed. In Formula M(L
A
)
x
(L
B
)
y
(L
C
)
z
:
M is a metal having an atomic number greater than 40;
x is 1 or 2;
x+y+z is the oxidation state of the metal M;
X
1
-X
4
and A
1
-A
8
are C or N;
at least one of A
1
-A
8
is N;
X is O, S, or Se;
two adjacent R
B
form a six-member aromatic ring E fused to ring B; wherein ring E can be substituted by R
E
;
each R
A
-R
E
and R
1
-R
4
is independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof.
公式M(
LA)x(LB)y(LC)z表示具有以下结构的化合物:其中
配体LA是
配体LB是,
配体LC是,以及包含这些化合物的装置和配方被揭示。在公式M(
LA)x(LB)y(LC)z中:M是具有原子序数大于40的
金属;x为1或2;x+y+z是
金属M的氧化态;X1-X4和A1-A8为C或N;A1-A8中至少一个为N;X为O、S或Se;相邻的两个RB形成一个与环B融合的六元芳香环E;其中环E可以被RE取代;每个RA-RE和R1-R4独立地选自氢、
氘、卤素、烷基、环烷基、杂基烷基、芳基烷基、烷氧基、芳氧基、
氨基、
硅基、烯基、环烯基、杂基烯基、炔基、芳基、杂芳基、酰基、羰基、
羧酸、酯、腈、异腈、
硫基、亚砜基、磺酰基、膦基和它们的组合。