Ir(dpm)(piq)2, namely bis(phenylisoquinoline)(2,2,6,6-tetramethylheptane-3,5-dionate) iridium(III), is an iso-structure to Ir(dpm)PQ2. Ir(dpm)(piq)2?has one??2,2,6,6-tetramethylheptane-3,5-dionate?with two bulky?tert-butyl groups and two?phenylisoquinoline ligands coordinated to the iridium core.