Iridium(iii) complexes with the dithieno[3,2-b:2′,3′-d]phosphole oxide group and their high optical power limiting performances

New cyclometalated iridium(iii) complexes with the dithieno[3,2-b:2′,3′-d]phosphole oxide group can show a higher optical power limiting ability than C₆₀ for a 532 nm laser.