Long-range ordered magnet of a charge-transfer Ru2 4+/TCNQ two-dimensional network compound

Hitoshi Miyasaka, Toru Izawa, Nao Takahashi, Masahiro Yamashita, Kim R. Dunbar

Research output: Contribution to journalArticlepeer-review

115 Citations (Scopus)


Two isostructural 2D assemblies composed of [Ru2(O2CCF3)4] and TCNQ or TCNQF4 in a 2:1 ratio were synthesized: [{Ru2(O2CCF3)4}2TCNQ]·3(p-xylene) (1b) and [{Ru2(O2CCF3)4}2TCNQF4]·3(p-xylene) (2). In 1b, the TCNQ moiety is assigned to be neutral because of no significant electron transfer from the Ru24+ units. Therefore, the magnetic property of 1b can be understood to be a paramagnetic nature of the isolated Ru24+ unit, while, a fully charge-transfer from the Ru2 units to the TCNQF4 molecules in 2 leads to charge delocalization spreading over the 2D network and allows a long-range magnetic order to occur. On the basis of an idea of the resonance scheme in charge-transfer D2A network systems, the first successful example of a charge-transferred magnet in the Ru2-TCNQ system was rationally designed by tuning redox between [Ru2]4+ and the TCNQ molecule changing from TCNQ to TCNQF4.

Original languageEnglish
Pages (from-to)11358-11359
Number of pages2
JournalJournal of the American Chemical Society
Issue number35
Publication statusPublished - 2006 Sept 6

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry


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