METAL COMPLEXES OF CYCLOMETALLATED IMIDAZO[1,2-f]PHENANTHRIDINE AND DIIMIDAZO[1,2-A:1',2'-C]QUINAZOLINE LIGANDS AND ISOELECTRONIC AND BENZANNULATED ANALOGS THEREOF

摘要

Compounds comprising phosphorescent metal complexes comprising cyclometallated imidazo[l,2-f]phenanthridine and diimidazo[l,2-a:l',2'-c]quinazoline ligands, or isoelectronic or benzannulated analogs thereof, are described. Organic light emitting diode devices comprising these compounds are also described.