期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 20, 页码 7813-7817出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202001186
关键词
BODIPY; carbazoles; circularly polarized luminescence; dyes; helicenes
资金
- Japan Society for the Promotion of Science [18K05083] Funding Source: Medline
- Tokuyama Science Foundation Funding Source: Medline
- Wesco Scientific Promotion Foundation Funding Source: Medline
- Grants-in-Aid for Scientific Research [18K05083] Funding Source: KAKEN
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 pi-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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