Generation, isolation, and reactivity of a kinetically stabilized diphosphene anion radical

Noriyoshi Nagahora, Takahiro Sasamori, Yoshinobu Hosoi, Yukio Furukawa, Norihiro Tokitoh*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


The stable lithium diphosphene anion radical, [Li(dme)3]+[TbtPPTbt]{radical dot}- (dme: 1,2-dimethoxyethane, Tbt: 2,4,6-tris[bis(trimethylsilyl)methyl]phenyl), was readily synthesized by the one-electron reduction of the corresponding neutral diphosphene (TbtP{double bond, long}PTbt). The molecular structure of the diphosphene anion radical was discussed in detail on the basis of its ESR, UV-Vis and Raman spectra, and theoretical calculations. The diphosphene anion radical was found to undergo ready chalcogenation reactions using elemental sulfur and selenium to afford the corresponding thiadiphosphirane and selenadiphosphirane, respectively.

Original languageEnglish
Pages (from-to)625-632
Number of pages8
JournalJournal of Organometallic Chemistry
Issue number4
Publication statusPublished - 2008 Feb 15


  • Anion radical
  • Cyclic voltammetry
  • Diphosphene
  • ESR spectrum
  • Reduction
  • UV-Vis spectrum

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


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