Synthesis and redox properties of π-conjugated 4,5-diazafluorene derivatives incorporating 9-cyanomethylene moiety as an electron acceptor

Katsuya Sako, Yasufumi Mugishima, Tetsuo Iwanaga, Shinji Toyota, Hiroyuki Takemura, Motonori Watanabe, Teruo Shinmyozu, Michito Shiotsuka, Hitoshi Tatemitsu

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We have synthesized p-conjugated acceptor-type molecules 3a-d containing a cyanomethylene unit as the electron acceptor site and a 4,5-diazafluorene ligand for metal complexation. In the crystal, the planar 3a molecules stack along the b axis in the head-to-tail fashion. Compound 3a shows distinctive electrochromism and its three differently colored redox states (dianion (3 2-), anion radical (3.-), neutral (3)) exhibit remarkable stability.

Original languageEnglish
Pages (from-to)5865-5868
Number of pages4
JournalTetrahedron Letters
Volume52
Issue number44
DOIs
Publication statusPublished - Nov 2 2011

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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