The inverted bond in [1.1.1]propellane is a charge-shift bond

Wei Wu*, Junjing Gu, Jinshuai Song, Sason Shaik, Philippe C. Hiberty

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

129 Scopus citations

Abstract

Bonded or not bonded? An ab initio valence bond study of [1.1.1]propellane shows that the two bridgehead carbons are linked by a strong and direct σ bond that is neither classically covalent nor classically ionic, but rather a charge-shift bond, in which the covalent-ionic resonance energy plays the major role. As such, the central bond of [1.1.1]propellane closely resembles the single bond of difluorine.

Original languageEnglish
Pages (from-to)1407-1410
Number of pages4
JournalAngewandte Chemie - International Edition
Volume48
Issue number8
DOIs
StatePublished - 9 Feb 2009

Keywords

  • Bond theory
  • Charge-shift bonds
  • Propellanes
  • Valence bond theory

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