Patent ID: 11930699
Assignee: UNIVERSAL DISPLAY CORPORATION
Field: Organic fine chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 1:
2. The compound of claim 1, wherein the compound has Formula II, , wherein:
M1 is Pd or Pt;
rings C and D are each independently a 5-membered or 6-membered carbocyclic or heterocyclic ring;
Z3 and Z4 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, CR″R′″, SiR″R′″, BR″, and NR″,
at least one of L1 and L2 is not absent a bond;
X4-X6 are each independently C or N;
RC and RD each independently represent zero, mono, or up to a maximum allowed substitution to its associated ring;
each R″, R′″, RC, and RD is independently a hydrogen or a substituent selected from the group consisting of deuterium, fluorine, alkyl, cycloalkyl, heteroalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, aryl, heteroaryl, nitrile, isonitrile, sulfanyl, and combinations thereof; and
two adjacent substituents can be joined or fused together to form a ring wherever chemically feasible.