Photo- And Redox-active Benzofuran-appended Triphenylamine and Near-infrared Absorption of Its Radical Cation

Masafumi Yano, Yoshinori Inada, Yuki Hayashi, Tatsuo Yajima, Koichi Mitsudo, Yukiyasu Kashiwagi

Research output: Contribution to journalArticlepeer-review

Abstract

A triarylamine bearing three benzofuran rings was designed and successfully prepared in 64% yield. It exhibited absorption at 385 nm, and blue emission at around 440 nm with a fluorescence quantum yield of 0.57. This compound showed high heat resistance and reversible one-electron oxidation. Upon one-electron chemical oxidation, a near-infrared absorption was revealed due to a persistent radical cation species. DFT calculations also supported the experimental data.

Original languageEnglish
Pages (from-to)685-688
Number of pages4
JournalChemistry Letters
Volume49
Issue number6
DOIs
Publication statusPublished - Jun 2020

Keywords

  • Benzofuran
  • Stable radical cation
  • Triarylamines

ASJC Scopus subject areas

  • Chemistry(all)

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