Synthesis of Organosilyl-Functionalized Cage-Type Germanoxanes Containing Fluoride Ions

Naoto Sato, Taiki Hayashi, Kazuma Tochigi, Hiroaki Wada, Atsushi Shimojima, Kazuyuki Kuroda

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Eight corners of a double-four ring cage-type germanoxane, containing a fluoride ion, were successfully silylated by the combination of chlorosilanes and silazanes. Three different silyl groups, trimethylsilyl, dimethylsilyl, and dimethylvinylsilyl, were attached on the corners of germanoxane cage. The solubility and reactivity of the cage modified with dimethylvinylsilyl groups were significantly increased, allowing for further reaction. Hydrosilylation reaction between dimethylvinylsilylated cage geramanoxanes and dimethylsilylated cage siloxanes afforded porous solids. Functionalization of the corners of germanoxanes with silyl groups should provide valuable building blocks in various functional materials.

Original languageEnglish
Pages (from-to)7860-7865
Number of pages6
JournalChemistry (Weinheim an der Bergstrasse, Germany)
Issue number33
Publication statusPublished - 2019 Jun 12


  • fluoride
  • germanium
  • porous materials
  • siloxane
  • silylation

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry


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