Control of Circularly Polarized Luminescence by Using Open‐ and Closed‐Type Binaphthyl Derivatives with the Same Axial Chirality

The solution-dispersed-state and polymer-dispersed-state circular dichroism (CD) and circularly polarized luminescence (CPL) properties of chiral binaphthyl fluorophores could be controlled by the choice of open- or closed-type substituents on the binaphthyl units and by the axial chirality of the binaphthyls.