Azahelicene-Fused BODIPY Analogues Showing Circularly Polarized Luminescence.
Angew Chem Int Ed Engl
; 59(20): 7813-7817, 2020 May 11.
Article
em En
| MEDLINE
| ID: mdl-32107825
ABSTRACT
Helical carbazole-based BODIPY analogues were readily synthesized via aza[7]helicenes. The structures of azahelicene-incorporated BF2 dyes were elucidated by x-ray diffraction analysis. DFT calculations revealed that the π-conjugated system expanded from the helicene moiety to the BODIPY framework. The azahelicene-fused boron complexes showed the Cotton effects and the circularly polarized luminescence (CPL) in the visible region. Furthermore, an axially chiral binaphthyl group was attached to the helically chiral dyes, which enhanced the chiroptical properties.
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MEDLINE
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En
Ano de publicação:
2020
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Article