Polyhedranes tetrasilatetrahedrane

Tetrasilatetrahedrane is accessible if the appropriate substituent is selected. As found in the case of the octasilacubane (/frr-BuMe2SiSi)s (15), silyl substituents decrease the strain in the polyhedrane (14). Thus, the synthesis of tetrasilatetrahedrane has been accomplished by use of the supersilyl group (/ert-BusSi) (10). 

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