US 12,281,129 B2
Organic electroluminescent materials and devices
George Fitzgerald, Lambertville, NJ (US); Joseph A. Macor, Philadelphia, PA (US); Jason Brooks, Philadelphia, PA (US); Hsiao-Fan Chen, Lawrence Township, NJ (US); Geza Szigethy, Newtown, PA (US); Diana Drennan, Quakertown, PA (US); Wystan Neil Palmer, Frenchtown, NJ (US); Wei-Chun Shih, Warrington, PA (US); Pierre-Luc T. Boudreault, Pennington, NJ (US); Zhiqiang Ji, Chalfont, PA (US); Woo-Young So, Richboro, PA (US); and Noah Horwitz, Mount Laurel, NJ (US)
Assigned to UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US)
Filed by Universal Display Corporation, Ewing, NJ (US)
Filed on Jul. 20, 2021, as Appl. No. 17/380,482.
Application 17/380,482 is a continuation in part of application No. 16/884,509, filed on May 27, 2020, granted, now 11,737,349.
Application 16/884,509 is a continuation in part of application No. 16/217,467, filed on Dec. 12, 2018, granted, now 11,081,659.
Prior Publication US 2022/0402953 A1, Dec. 22, 2022
Int. Cl. C07F 15/00 (2006.01); H10K 85/30 (2023.01); H10K 85/40 (2023.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01)
CPC C07F 15/0033 (2013.01) [H10K 85/342 (2023.02); H10K 85/40 (2023.02); H10K 85/622 (2023.02); H10K 85/624 (2023.02); H10K 85/626 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 50/11 (2023.02); H10K 2101/10 (2023.02)] 20 Claims
 
1. A compound having the structure of Formula II:

OG Complex Work Unit Chemistry
wherein:
ring A and ring B are each independently a 5-membered or 6-membered carbocyclic or heterocyclic ring;
moieties E and F are each independently a monocyclic or polycyclic ring structure comprising 5-membered and/or 6-membered carbocyclic or heterocyclic rings;
M1 is Pd or Pt;
Z1 to Z7 are each independently C or N;
K1, K2, K3, and K4 are each independently selected from the group consisting of a direct bond, O, and S, wherein at least two of them are direct bonds;
L1, L2, and L3 are each independently selected from the group consisting of a single bond, absent a bond, O, S, C═NR′, C═CR′R″, CR′R″, SiR′R″, BR′, and NR′, wherein at least one of L1 and L2 is present;
X is BR1, BR1R2, AlR1, AlR1R2, GaR1, GaR1R2, InR1, InR1R2, CO, SO2, or POR1;
Y is NR3, NR3R4, PR3, O, S, Se, SO, SO2, CR3R4, SiR3R4, PR3R4, or GeR3R4;
RA, RB, RE, and RF each independently represent zero, mono, or up to a maximum allowed substitution to its associated ring;
each of RA, RB, RE, RF, R′, R″, R1, R2, R3, and R4 is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, germyl, boryl, selenyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; and
any two substituents can be joined or fused together to form a ring.