An Isolable Tetrasilicon Analogue of a Planar Bicyclo[1.1.0]butane with π-Type Single-Bonding Character

Takumi Nukazawa, Takeaki Iwamoto

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Isolable compounds that contain πbonding without an underlying σ-bond framework (π-type single bonding) remain scarce. Herein we report the synthesis and properties of 1,3-diiodotetrasilabicyclo[1.1.0]butane 2 via 1,2-diiodination of the corresponding bridgehead disilene 1. Single-crystal X-ray diffraction analysis of 2 revealed a planar bicyclic silicon ring with a planar geometry around the bridgehead silicon atoms and a long bridgehead Si-Si distance. DFT calculations suggested a π-type single bond between the bridgehead Si atoms in 2 and indicated that the high planarity of 2 should most likely be attributed to the bulky substituents at the bridge positions.

Original languageEnglish
Pages (from-to)9920-9924
Number of pages5
JournalJournal of the American Chemical Society
Volume142
Issue number22
DOIs
Publication statusPublished - 2020 Jun 3

ASJC Scopus subject areas

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

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