12- 12-:1'2'- METAL COMPLEXES OF CYCLOMETALLATED IMIDAZO12-fPHENANTHRIDINE AND DIIMIDAZO12-A:1'2'-CQUINAZOLINE LIGANDS AND ISOELECTRONIC AND BENZANNULATED ANALOGS THEREOF

摘要

The present invention provides cyclometalated imidazo [1,2-f] phenanthridine and diimidazo [1,2-a: 1 ', 2'-c] quinazoline ligands, or isoelectronic or benzcyclization thereof It relates to a compound comprising a phosphorescent metal complex containing an analog. Further, the present invention relates to an organic light emitting diode device comprising these compounds.