π-Conjugated species with an unsupported Si-Si π-bond obtained from direct π-extension

Takumi Nukazawa, Takeaki Iwamoto

Research output: Contribution to journalArticlepeer-review

Abstract

1,3-Diethynylbicyclo[1.1.0]tetrasilanes that contain an unsupported bridgehead Si-Si π-bond and ethynyl π-moieties were synthesized by the reaction of a 1,3-dihalobicyclo[1.1.0]tetrasilane with the corresponding lithium acetylide. The substantial bathochromic shift of the longest-wavelength absorption band observed for the phenylethynyl-substituted bicyclo[1.1.0]tetrasilane in the solid state compared to that of the octynyl-substituted derivative suggested the presence of effective π-conjugation between the unsupported Si-Si π and ethynyl π units.

Original languageEnglish
Pages (from-to)9692-9695
Number of pages4
JournalChemical Communications
Volume57
Issue number76
DOIs
Publication statusPublished - 2021 Sep 28

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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