Generation of Aromatic (Dehydro)benzoannulene Dications Stabilized by Platinum Catecholate Complexes

Kazukuni Tahara*, Hiroyoshi Kozuma, Varadhachari Venkatesh, Eri Ryomura, Hirokazu Miyoshi, Keigo Nakamachi, Ryohei Kishi, Hideaki Takahashi, Masayoshi Nakano, Yoshito Tobe

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


A dehydrobenzo[12]annulene attached by three platinum catecholate units is oxidized chemically or electrochemically to generate mono-, di-, and trications. Similarly, a platinum catecholate complex with a dibenzo[8]annulene framework also generates mono- and dications upon oxidation. On the basis of theoretical and spectroscopic studies with respect to energetic, structural, and magnetic criteria, these dications are deduced to be aromatic, thus demonstrating a new method for stabilizing aromatic dications.

Original languageEnglish
Pages (from-to)1052-1056
Number of pages5
Issue number7
StatePublished - 1 Aug 2017


  • aromaticity
  • dehydrobenzoannulene
  • dications
  • oxidation
  • platinum

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