申请人:Universal Display Corporation
公开号:US20200168808A1
公开(公告)日:2020-05-28
A compound of Formula I
wherein X
1
to X
8
are independently selected from C or N, and Y is selected from the group consisting of NR
2
, O, S, Se, CR
3
R
4
, SiR
3
R
4
, and GeR
3
R
4
. R
A
and R
B
represent mono to the maximum allowable substitution, or no substitution. The compounds of Formula I will also have at least one of R
A
, R
B
, R
1
, R
2
, R
3
, or R
4
that comprises a structure selected from the group consisting of formula A, formula B, and formula C as described herein. In n the structures of formula A, formula B, or formula C, Z is selected from the group consisting of NR
5
, O, S, Se, CR
6
R
7
, SiR
6
R
7
, and GeR
6
R
7
; wherein R
5
is a substituent selected from the group consisting of deuterium, alkyl, cycloalkyl, aryl, heteroaryl, and combinations thereof; or optionally, R
5
is an aromatic linker that connects the structure of formula A to Formula I, or the structure of formula C to Formula I. In formulae A, B, and C, X
9
to X
41
are independently selected from C or N; where in formula B, at least one of X
17
to X
33
is N; and in formula C, at least one of X
34
to X
41
is N. The substituents R
C
, R
H
, R
E
, R
F
, R
G
, R
H
, R
I
, and R
J
represent mono to the maximum allowable substitution, or no substitution.
化合物的化学式为I,其中X1至X8独立地选自C或N,而Y选自由NR2、O、S、Se、CR3R4、SiR3R4和GeR3R4组成的群。RA和RB表示单一到最大允许的取代,或者不取代。化学式I的化合物还至少有一个RA、RB、R1、R2、R3或R4,其包含如下所述的由公式A、公式B和公式C组成的结构中的一个。在公式A、B或C的结构中,Z选自由NR5、O、S、Se、CR6R7、SiR6R7和GeR6R7组成的群;其中R5是选自氘、烷基、环烷基、芳基、杂环芳基和它们的组合的取代基;或者可选地,R5是将公式A的结构连接到化学式I或公式C的结构连接到化学式I的芳香连接基。在公式A、B和C中,X9至X41独立地选自C或N;在公式B中,至少有一个X17至X33为N;而在公式C中,至少有一个X34至X41为N。取代基RC、RH、RE、RF、RG、RH、RI和RJ表示单一到最大允许的取代,或者不取代。