Chart 1. Complexes at a glance. Molecular structures of C1–C11 showing the cyclometalated core and the ancillary ligands. C1–C9 have [Ir(ppy)2]+ as the cyclometalated core whereas C11 contains [Re(CO)3Cl] as the metal core. C1–C9 contain various substitutions in the phenolic ring of the ancillary ligand. C10 has benzo(h)quinoline instead of 2-phenylpyridine attached to Ir(iii).
