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Updated: Jun 27, 2025

Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
Published on: September 18, 2016
Open shell (4n + 2)π and closed shell 4nπ planar core-modified decaphyrins
Pragati Shukla1, Madan D Ambhore1, Venkataramanarao G Anand1
1Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune 411008 Maharashtra India vg.anand@iiserpune.ac.in.
Abstract:
Planar 44π and 46π core-modified decaphyrins with ten thiophene units have been synthesized from short thiophene oligomers. They have been structurally characterized by single crystal X-ray diffraction with further support from spectroscopic analysis and quantum chemical calculations. Our analysis revealed diradicaloid characteristics for 46π species in contrast to the closed shell property of the 44π congener. Further, 44π and 46π undergo reversible two-electron chemical oxidation, as observed by spectro-electrochemical measurements.
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