Used as a chiral catalyst ligand in asymmetric synthesis, particularly in transition metal-catalyzed reactions such as hydrogenation and cross-coupling. Its sterically hindered, electron-rich structure enhances enantioselectivity and catalytic efficiency. Commonly applied in pharmaceutical synthesis where high optical purity is required. The trifluoromethyl and sulfonamide groups improve ligand stability and metal coordination, making it effective in palladium and rhodium complexes. Also employed in materials science for designing chiral luminescent compounds due to the phenanthrene moieties.