4.7 Article

A cationic benzocorrole Cu(II) complex as a highly stable antiaromatic system

Journal

CHEMICAL COMMUNICATIONS
Volume 57, Issue 3, Pages 383-386

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc06703b

Keywords

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Funding

  1. National Natural Science Foundation of China [21771102, 22071103, 22001119]
  2. NSFC-JSPS International (regional) Cooperation and Exchange project [21911540069]
  3. Fundamental Research Funds for the Central Universities [020514380165]

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A highly stable 16 pi-electron antiaromatic system based on ligand-oxidized Cu(ii)-tetrabenzocorrole has been reported, with the antiaromaticity of the monocationic corrole complex elucidated through unique bond length alternation patterns and spectral features. NICS and GIMIC calculations clearly illustrate its inner 15-membered-ring main pathway with a strong paratropic ring current.
Here we report a highly stable 16 pi-electron antiaromatic system based on the ligand-oxidized Cu(ii)-tetrabenzocorrole. The antiaromaticity of the monocationic corrole complex was elucidated with the unique bond length alternation pattern of the crystal structure and the spectral diagnostic features. The NICS and GIMIC calculations clearly depicted its inner 15-membered-ring main pathway with a strong paratropic ring current.

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