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

Provided is novel cyclometallated tetradentate platinum compounds. Compounds contain two ligands that contain a 5-membered carbocyclic or heterocyclic ring, one of which contains an imidazole ring with a twisted aryl group attached to N-1 and a second aromatic ring that is attached to platinum via a carbon atom. The compounds can be usefully used in OLEDs.