Fused corrole dimers interconvert between nonaromatic and aromatic states through two-electron redox reactions

Shota Ooi, Takayuki Tanaka, Kyu Hyung Park, Sangsu Lee, Dongho Kim, Atsuhiro Osuka

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30 Citations (Scopus)


A singly linked corrole dimer was synthesized by condensation of a dipyrromethane-1-carbinol with 1,1,2,2-tetrapyrroethane. Oxidation of the dimer gave doubly linked corrole dimers 9 and 10 as the first examples of fused corrole dimers involving a meso-meso linkage. Dimers 9 and 10 exhibit characteristic 1H NMR spectra, absorption spectra, excited-state dynamics, and two-photon absorption (TPA) values, which indicate the nonaromatic nature of 9 and the aromatic nature of 10. Interestingly, 9 is fairly stable despite its unusual 2H-corrole structure, which has been ascribed to the presence of two direct connections between the individual corrole units.

Original languageEnglish
Pages (from-to)3107-3111
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number10
Publication statusPublished - 2015 Mar 2


All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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