Achieving high circularly polarized luminescence with push-pull helicenic systems: from rationalized design to top-emission CP-OLED applications.

ABSTRACT: While the development of chiral molecules displaying circularly polarized luminescence (CPL) has received considerable attention, the corresponding CPL intensity, g _lum, hardly exceeds 10^-2 at the molecular level owing to the difficulty in optimizing the key parameters governing such a luminescence process. To address this challenge, we report here the synthesis and chiroptical properties of a new family of π-helical push-pull systems based on carbo[6]helicene, where the latter acts as either a chiral electron acceptor or a donor unit. This comprehensive experimental and theoretical investigation shows that the magnitude and relative orientation of the electric (μ_e ) and magnetic (μ _m ) dipole transition moments can be tuned

SUBMITTER: Dhbaibi K 

PROVIDER: S-EPMC8179576 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature