Unprecedented hetero-coordinated Ir(C^N)₂tmd complexes containing both five- and six-membered Ir-(C^N) rings based on phenanthrylpyridine ligands: syntheses, crystal structures and photophysical properties

Abstract

By using 2-(9-phenanthryl)pyridine (phpyr) and its derivatives as cyclometalated ligands, we synthesized a set of isomeric red-emitting complexes Ir(phpyr-R)2tmd (R = -H,-CF3, -F and -CH3, tmd = 2,2,6,6-tetramethylheptane-3,5-dione) with different...