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Updated: Nov 19, 2025

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Synthesis and Optical Properties of Axially Chiral Bibenzo[b]carbazole Derivatives
Ryo Takishima1, Yuji Nishii1, Masahiro Miura1
1Department of Applied Chemistry, Graduate School of Engineering, Suita, Osaka 565-0871, Japan.
Abstract:
Pure organic materials with the circularly polarized luminescence (CPL) property have attracted significant research interest over the past few decades. In this study, a series of axially chiral bibenzo[b]carbazole derivatives were synthesized by adopting palladium- and iridium-catalyzed direct C-H functionalization reactions as the key steps. These compounds exhibited CPL characteristics with considerably large dissymmetry factors up to 2.81 × 10-2 in the solid state, indicating the formation of well-ordered aggregates.
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