Fluoride-ion encapsulated within a silsesquioxane cage

Bassindale, Alan R.; Pourny, Manuel; Taylor, Peter G.; Hursthouse, Michael B. and Light, Mark E. (2003). Fluoride-ion encapsulated within a silsesquioxane cage. Angewandte Chemie International Edition, 42(30) pp. 3488–3490.

DOI: https://doi.org/10.1002/anie.200351249


Octaspherosilicate structures have found use as scaffolds for dendrimer synthesis, as models for aluminosilicate structures, and as supports for organometallic catalysts. Space-filling models of such cages suggest there is a void at the center of the cube, but that it is questionable whether it could be filled by an atomic species. Päch and Stosser have shown that g-irradiation of octaalkyl octasilsesquioxane or octatrialkyl siloxyoctasilsesquioxane leads to hydrogenencapsulated
T8 or Q8 cages. ESR spectroscopy confirmed that the hydrogen originated from the organic substituents of the cage.

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