CPC C07F 15/0086 (2013.01) [H10K 85/346 (2023.02); H10K 99/00 (2023.02)] | 20 Claims |
1. A compound comprising a structure of a formula selected from the group consisting of
wherein,
M is selected from the group consisting of Os, Pd, Pt, Ir, Cu, and Au;
at least one of RA1, RA2, RA3, RA4, RA5, or RA6 is a structure of
Y1A to Y4A are each independently C or N;
no more than two of Y1A to Y4A are N;
Z1 to Z13 are each independently C or N;
three consecutive Z1 to Z13 in the same ring cannot be N;
RA3, RA6, RM, RN, and RO each independently represent mono to the maximum allowable substitutions, or no substitution;
each RA1, RA2, RA3, RA4, RA5, RA6, RM, RN, and RO 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;
at least one RM, RN, or RO is not hydrogen;
M can be coordinated to other ligands;
any two substituents can be joined or fused to form a ring; and
provided that when the compound comprises is Formula V, and one of RA1 and RA2 is Formula VII, then at least one of RM, RN, and RO is selected from the group consisting of deuterium, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, aryl, heteroaryl, and combinations thereof.
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