METAL COMPLEXES OF CYCLOMETALLATED IMIDAZO1,2-fPHENANTHRIDINE AND DIIMIDAZO1,2-A:1',2'-CQUINAZOLINE LIGANDS AND ISOELECTRONIC AND BENZANNULATED ANALOGS THEREOF

摘要

The invention relates to a compound comprising a phosphorescent metal complex comprising a monoanionic, bidentate ligand; wherein the metal is selected from the group consisting of the non-radioactive metals with atomic numbers greater than 40; and wherein the bidentate ligand comprises a carbene donor and may be linked with other ligands to comprise a tridentate, tetradentate, pentadentate or hexadentate ligand.