The first delocalized phosphole containing a planar tricoordinate phosphorus atom: 1-[bis(trimethylsilyl)methyl]-3,5-bis(trimethylsilyl)-1,2,4-triphosphole

F. Geoffrey, N. Cloke, Peter B. Hitchcock, Philip Hunnable, John F. Nixon, Lászlo Nyulászi, Edgar Niecke, Vera Thelen

Research output: Contribution to journalArticle

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The sterically demanding groups on the tricoordinate phosphorus atom, the π-electron acceptors substituted on the ring, and the dicoordinate phosphorus atoms within the ring are the most significant factors contributing to the planarity and aromaticity of the 1,2,4-triphosphole ring in 1. The Bird aromaticity index for 1 shows that it has the most pronounced aromatic character of all known phospholes.

Original languageEnglish
Pages (from-to)1083-1086
Number of pages4
JournalAngewandte Chemie - International Edition
Issue number8
Publication statusPublished - May 4 1998



  • Aromaticity
  • Heterocycles
  • Phospholes
  • Phosphorus

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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