Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 139, Issue 51, Pages 18508-18511Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b07622
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- Aix-Marseille Universite
- Centre National de la Recherche Scientifique (CNRS)
- CNRS PICS [PICS07573]
- University of Bologna
- French-Italian University Vinci Program [C3-141]
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A one-step synthesis of a nanographene propeller with a D-3-symmetry was obtained starting from 7,8-dibromo[5]helicene by Yamamoto nickel(0) couplings. It afforded a chiral polyaromatic hydrocarbon (PAH) embedding six enantiomerically stable [5]helicene units. This dense accumulation of helical strain resulted in a distorted geometry, but stable stereochemistry. The conformational, structural, chiroptical, and photophysical properties of the molecule are reported.
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