Synthesis of Organosilyl‐Functionalized Cage‐Type Germanoxanes Containing Fluoride Ions.

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

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.

SILOXANES; SILYL group; FLUORIDES; IONS; POROUS materials; HYDROSILYLATION

Chemistry - A European Journal, 2019, Vol 25, Issue 33, p7860

0947-6539

Academic Journal

10.1002/chem.201900439