Patent ID: 11871653
Assignee: UNIVERSAL DISPLAY CORPORATION
Field: Organic fine chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 0:
1. A compound comprising a first ligand LA;
wherein LA has the following formula:, wherein,
A and B are each independently a 5-membered or 6-membered carbocyclic or heterocyclic ring;
R2 and R3 represent mono, di, tri, tetra substitutions or no substitution;
each 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, boryl, and combinations thereof;
any two adjacent R1, R2, and R3 can be joined to form a ring, which can be further substituted;
LA is bidentate and is coordinated to a metal M; and
LA does not include the following structure, , but can include, , wherein
ring J is a 5-membered or 6-membered heterocyclic ring;
X3 to X8, X10, and X12 are each independently C or N;
R11 to R14 represent mono to the maximum possible number of substitutions or no substitution;
each substituent in R11 to R14 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, boryl, and combinations thereof;
any two adjacent R11 to R14 can be joined to form a ring, which can be further substituted;
wherein one of R2 or R3 comprises a 5-membered or 6-membered carbocyclic or heterocyclic aromatic ring and is coordinated to the metal M; and
wherein ring A or ring B is coordinated to M.