Patent ID: 7705528

Claim:
An electroluminescent polymer having a backbone comprising a) structural units of an aromatic monomer-metal complex, which structural units are represented by the following formula: where L is a bidentate ligand; M is Ir, Rh, or Os; Ar′ and Ar″ are aromatic moieties which may be the same or different with the proviso that at least one of Ar′ and Ar″ is heteroaromatic; and wherein R′ a and R′ b are substitutents or H, with the proviso that at least one of R′ a and R′ b contains an aromatic group that is part of the polymer backbone and a linking group that disrupts conjugation between the aromatic group and the metal complex fragment; and b) structural units of at least one aromatic comonomer, which polymer is characterized by being conjugated along the polymer backbone created by structural units of the aromatic monomer-metal complex and structural units of the at least one aromatic comonomer.