Two ligands, a and b, both form complexes with a particular metal ion. when the metal ion complexes with ligand a, the resulting solution is red. when the metal ion complexes with ligand b, the resulting solution is yellow. which of the two ligands produces the larger δ? two ligands, and , both form complexes with a particular metal ion. when the metal ion complexes with ligand , the resulting solution is red. when the metal ion complexes with ligand , the resulting solution is yellow. which of the two ligands produces the larger ? ligand a produces a higher δ ligand b produces a higher δ ligands a and b produce the same δ there is not enough data to determine.