1 2 4 CYCLOMETALLATED TETRADENTATE PTII COMPLEXES COMPRISED OF ONE OR TWO IMIDAZOLE RINGS WITH A TWISTED ARYL GROUP BONDED TO N-1

摘要

Novel cyclometalated tetradentate platinum (II) compounds are provided. The compound contains two ligands containing a 5-membered carbocyclic or heterocyclic ring, one of which is bound to platinum via a carbon atom and an imidazole ring with a twisted aryl group attached to N-1 It possesses a second aromatic ring. Usefully these compounds can be used in OLEDs.