Volume 39, Issue 20 pp. 3598-3601
Communication

A Novel Borosilicate Cage Compound with an Incomplete B4Si4 Cube Structure: [(tBuSi)4(CH2=CHC6H4B)4O10]

Lorraine A. Neville

Lorraine A. Neville

Chemistry Department University College, Cork (Ireland) Fax: (+353)-21-274097

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Trevor R. Spalding Prof.

Trevor R. Spalding Prof.

Chemistry Department University College, Cork (Ireland) Fax: (+353)-21-274097

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George Ferguson

George Ferguson

School of Chemistry University of St. Andrews, Fife, KY16 9ST (UK)

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The authors thank Dr. J. D. Kennedy, University of Leeds (UK) for many helpful discussions and the 11B and 29Si NMR spectra. Research grants to G.F. from NSERC Canada and to L.A.N. from Forbairt (Ireland) are gratefully acknowledged.

Abstract

Equal numbers of boron and silicon atoms are present in a new type of cage compound whose structure (see picture) is based on an incomplete B4Si4 cube in which the boron sites are three-coordinate. This compound, which was synthesized from tert-butyltrichlorosilane, 4-vinylphenylboronic acid, and aqueous aniline, is the first cube-based structure with pairs of the same atoms in adjacent positions.

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