BF2‐Complexes of Carbazole–Benzimidazole Conjugates: Synthesis, Structures, and Spectroscopic Properties

[摘要] A series of carbazole–benzimidazole conjugates and corresponding BF2‐complexes (BODIPYs) are synthesized and characterized. Carbazole–benzimidazole conjugates are synthesized by the condensation of 1‐formyl carbazole and phenylene diamines in good yields. Various substituents are introduced into the benzimidazole moiety and subsequent reaction with BF3•Et2O afforded the BF2‐complexes in moderate to good yield. The structural and photophysical properties of the synthesized fluorophores are investigated with various spectroscopic techniques such as UV/Vis and fluorescence spectroscopy, cyclic voltammetry and X‐ray crystallography.

[学科分类] 化学（综合）

[关键词] Fluorescence dyes;BODIPY;Carbazole;Stokes shift;Benzimidazole