Carbazole-Based Boron Dipyrromethenes (BODIPYs): Facile
Synthesis, Structures, and Fine-Tunable Optical Properties
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Abstract
Carbazole-based BODIPYs
were synthesized in three steps using an
organometallic approach consisting of sequential Ir-catalyzed borylation,
Suzuki–Miyaura coupling, and boron complexation. Various substituents
were introduced into the carbazole moiety, and large substituent effects
were confirmed by means of absorption spectroscopy, cyclic voltammetry,
and DFT calculations. Dibenzocarbazoles were also converted into the
corresponding BODIPYs