Synthesis and Optical Properties of Axially Chiral Bibenzo[<i>b</i>]carbazole Derivatives
Ryo Takishima, Yuji Nishii, Masahiro Miura
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.
Topics & Concepts
CarbazoleChemistryIridiumAxial symmetrySurface modificationLuminescenceCatalysisCombinatorial chemistrySolid-statePhotochemistryOrganic chemistryPhysical chemistryMaterials scienceOptoelectronicsPhysicsQuantum mechanicsSynthesis and Properties of Aromatic CompoundsAxial and Atropisomeric Chirality SynthesisAdvanced NMR Techniques and Applications