A higher yielding route for T8 silsesquioxane cages and X-ray crystal structures of some novel spherosilicates

Bassindale, Alan R.; Liu, Zhihua; MacKinnon, Iain A.; Taylor, Peter G.; Yang, Yuxing; Light, Mark E.; Horton, Peter N. and Hursthouse, Michael B. (2003). A higher yielding route for T8 silsesquioxane cages and X-ray crystal structures of some novel spherosilicates. Dalton Transactions, 14 pp. 2945–2949.

DOI: https://doi.org/10.1039/b302950f

Abstract

The synthesis of T8 silsesquioxane cages from trialkoxysilanes using tetra n-butylammonium fluoride is described. The yields are in the range 20–95%, which is a great improvement on other literature routes. This methodology enables a wide range of functionalised T8 cages to be prepared. The X-ray crystal structures of three new T8 cages, octacyclopentylsilsesquioxane, octaisobutylsilsesquioxane and octa(4-carboxymethyl-3,3-dimethylbutyl)-silsesquioxane are also reported.

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