Persilastaffanes: Design, synthesis, structure, and conjugation between silicon cages

Takeaki Iwamoto, Daisuke Tsushima, Eunsang Kwon, Shintaro Ishida, Hiroyuki Isobe

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


By stepwise catenation of bicyclo[1.1.1]pentasilane units persila[n]staffanes (n=1, 2, and 3) were synthesized as air-stable colorless crystals. A remarkable red-shift of the UV/Vis absorption bands with increasing number of bicyclo[1.1.1]pentasilane units suggests remarkable interactions between bridgehead Si-Si σ orbitals and between cage Si-Si σ orbitals (see picture).

Original languageEnglish
Pages (from-to)2340-2344
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number10
Publication statusPublished - 2012 Mar 5


  • conjugation
  • oligomerization
  • silanes
  • staffanes


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