CPC H10K 85/342 (2023.02) [C07F 15/0033 (2013.01); C07F 15/0046 (2013.01); C09K 11/06 (2013.01); H10K 85/361 (2023.02); C09K 2211/1029 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1059 (2013.01); C09K 2211/185 (2013.01); H10K 50/11 (2023.02); H10K 50/81 (2023.02); H10K 50/82 (2023.02); H10K 50/826 (2023.02); H10K 2101/10 (2023.02); H10K 2102/00 (2023.02); H10K 2102/103 (2023.02)] | 19 Claims |
1. A compound, wherein the compound is a phosphorescent compound that is a neutral metal complex of a tetradentate ligand;
wherein the ligand comprises a first heteroaryl ring directly bonded to the metal;
wherein the first heteroaryl ring is directly bonded to a second aryl or heteroaryl ring which is not directly bonded to the metal and which is substituted at both ortho positions by groups selected from the group consisting of alkyl, aryl, heteroaryl, and diarylamino;
wherein at least one of the ortho positions of the second aryl or heteroaryl ring is substituted by a group selected from the group consisting of aryl, heteroaryl, and diarylamino;
wherein the first heteroaryl ring is an imidazole, quinoline, isoquinoline, pyridine, pyrimidine, pyridazine, pyrrole, oxazole, thiazole, oxadiazole, thiadiazole, furan, or thiophene ring;
wherein the metal complex is an organometallic complex; and
wherein the metal is Pt.
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