Phosphindolizine: A compound with planar phosphorus

László Nyulászi, Uwe Bergsträßer, Manfred Regitz, Paul Von Rague Schleyer

Research output: Contribution to journalArticle

21 Citations (Scopus)


Phosphindolizine, a fused ring with a bridgehead tricoordinated phosphorus, is nearly planar, with an inversion barrier of 3.5 kcal mol-1 at the B3LYP/6-311+G** level of theory. Diphosphaphosphindolizine is planar. Both the six- and the five-membered rings exhibit significant aromatic character, even in phosphindolizine, which is not entirely planar. The lone pair of the tricoordinate phosphorus is delocalized. The estimated aromatic stabilization in the two rings is 40 kcal mol-1.

Original languageEnglish
Pages (from-to)651-654
Number of pages4
JournalNew Journal of Chemistry
Issue number7
Publication statusPublished - Jul 1998

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Materials Chemistry

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  • Cite this

    Nyulászi, L., Bergsträßer, U., Regitz, M., & Von Rague Schleyer, P. (1998). Phosphindolizine: A compound with planar phosphorus. New Journal of Chemistry, 22(7), 651-654.