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Updated: Oct 14, 2025

Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
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Synthesis, Aromaticity, and Application of peri-Pentacenopentacene: Localized Representation of Benzenoid Aromatic

Tanguy Jousselin-Oba1, Masashi Mamada2, Karen Wright1

  • 1Institut Lavoisier de Versailles, UMR CNRS 8180, University Paris-Saclay, 45 avenue des Etats-Unis, 78035, Versailles Cedex, France.

Angewandte Chemie (International Ed. in English)
|November 2, 2021
PubMed

Keywords:
Clar's representationacenoacenesaromaticityorganic light-emitting diodesstructure elucidation

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Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
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