Cover Picture: Highly Fluorescent Bipyrrole‐Based Tetra‐BF₂ Flag‐Hinge Chromophores: Achieving Multicolor and Circularly Polarized Luminescence (Angew. Chem. Int. Ed. 27/2022)

Advancing the construction of circularly polarized luminescence (CPL) materials by molecular design has become an important target in this research area. In their Research Article (e202204358), Yoshio Hisaeda, Toshikazu Ono, and co-workers demonstrate a new bipyrrole-based boron difluoride family exhibiting intense multicolor with easy synthetic access. Tuning rotational barrier around 2,2′-bipyrrole affords CPL, CPL can be achieved controlling aggregation state.