The synthesis and structure of a new type of borosilicate cage

Article abstract of DOI:10.1016/S0022-328X(96)06468-6

The novel borosilicate compound [^tBuSi{O(BC₆H₄Br)O}₃Si¹Bu], 1, which contains a Si(OBO)₃Si cage, is synthesised by the reaction of tert-butylsilanetriol with 4-bromophenylboric acid in toluene solution at reflux and structurally characterised with X-ray diffraction and spectroscopic techniques.