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Updated: Oct 18, 2025

Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
Published on: September 18, 2016
Exciton coupling chirality in helicene-porphyrin conjugates
Kais Dhbaibi1, Paola Matozzo1, Laura Abella2
1Univ Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France. ludovic.favereau@univ-rennes1.fr.
None:
Enantiopure helicene-porphyrin conjugates were prepared. They show strong changes in their circular dichroic response as compared to classical helicene derivatives, with highly intense bisignate Exciton Coupling (EC) signal and Δε values up to 680 M-1 cm-1 for the Soret band. They also display circularly polarized fluorescence in the (far-)red region, with dissymmetry factors up to 7 × 10-4.
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