US 12,084,465 B2
Organic electroluminescent materials and devices
Morgan C. MacInnis, Yardley, PA (US); Woo-Young So, Richboro, PA (US); Hsiao-Fan Chen, Lawrence Township, NJ (US); Tyler Fleetham, Newtown, PA (US); Jason Brooks, Philadelphia, PA (US); Douglas Williams, Mullica Hill, NJ (US); Charles J. Stanton, III, Wilmington, DE (US); Satwinder Singh Marok, Newark, DE (US); and Hojae Choi, West Chester, PA (US)
Assigned to UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US)
Filed by UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US)
Filed on Feb. 1, 2021, as Appl. No. 17/163,872.
Claims priority of provisional application 62/980,570, filed on Feb. 24, 2020.
Prior Publication US 2021/0292351 A1, Sep. 23, 2021
Int. Cl. H10K 85/40 (2023.01); C07F 15/00 (2006.01); H10K 85/30 (2023.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01)
CPC C07F 15/006 (2013.01) [C07F 15/0086 (2013.01); H10K 85/346 (2023.02); H10K 85/40 (2023.02); H10K 50/11 (2023.02); H10K 2101/10 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A compound of

OG Complex Work Unit Chemistry
wherein:
A1 is selected from the group consisting of O, S, Se, BR, CRR′, SiRR′, and NR;
A2 is selected from the group consisting of N and CR;
Z1, Z2, and Z3 are each independently C or N;
ring C and ring D are each independently a 5-membered or 6-membered heterocyclic or carbocyclic ring;
L represents a direct bond or a linker comprising one backbone atom selected from the group consisting of

OG Complex Work Unit Chemistry
 and with L being a linker when one or both of ring C and ring D are 6-membered rings;
L1 and L2 are each independently a direct bond, a linking group selected from the group consisting

OG Complex Work Unit Chemistry
and combinations thereof, or absent, but not both absent at the same time;
RA, RB, RC, and RD each independently represents zero, mono, or up to the maximum allowed number of substitutions to its associated ring;
each of R, R′, RA, RB, RC, and RD is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
M is Pd or Pt;
any two adjacent R, R′, RA, RB, RC, and RD can be joined or fused together to form a ring and
wherein one of the following is true:
i) rings C and D are both a 5-membered ring; or
ii)

OG Complex Work Unit Chemistry