Patent ID: 11903305
Assignee: UNIVERSAL DISPLAY CORPORATION
Field: Organic fine chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 0:
1. A compound of formula Ir(LA)m(LB)n;, wherein LA has, , and LB has
wherein,
m and n are each 1 or 2;
m+n=3;
X1 to X10 are each independently C or N;
the maximum number of N atoms that can connect to each other in each ring is two;
R1 and R2 represent mono to the maximum allowable number of substituents, or no substituent;
each of R1 , R2, and R3 is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
at least one of R1 and R2 is a substituent selected from the group consisting of halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof, R4 and R5 are each selected from the group consisting of alkyl, cycloalkyl, heteroalkyl, cycloheteroalkyl, and combinations thereof;
at least one of R4 and R5 comprises five or more carbon atoms; and
at least one of X1 to X10 is N.