PL and EL Behavior of Near-Red Luminescent Metallopolymer Easily Prepared from Phosphine-Containing Copolymer and Chloro{bis(1-phenylisoquinolinato-N,C2′)}iridium(III), and Its Monomeric Analog

We successfully developed phosphorescent cyclometallated iridium-containing metallopolymers, which are near-red luminescent iridium complexes bearing phosphine-containing copolymers used as polymer ligands, and investigated their photoluminescence and electroluminescence behavior. The phosphine copolymer ligand made from methyl methacrylate and 4-styryldiphenylphosphine can be used as an anchor, which coordinates luminescent iridium units to form the metallopolymer easily. Organic light-emitting diodes were fabricated from the metallopolymer and its nonpolymer analog, [IrCl(piq)(2)PPh3]. These complexes exhibited quite similar luminescence behavior, except for emission from the free-phosphine-units in the polymer side chain and their energy-transferring properties from host to guest materials. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 4366-4378, 2009