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Synfacts 2009(9): 0972-0972  
DOI: 10.1055/s-0029-1217681
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

Conjugated Borasiloxane Cages

Contributor(s): Timothy M. Swager, Brett VanVeller
W. Liu, M. Pink, D. Lee*
Indiana University, Bloomington, USA
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Publication History

Publication Date:
21 August 2009 (online)

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Significance

Borasiloxane cages were synthesized by a simple cyclocondensation and subsequently electropolymerized into thin films. A through-space coupling between the two π-conjugated fragments exists despite the long B-to-B distance of almost 4 Å. Finally, the films exhibit a reversible colorimetric response to volatile amines and other Lewis bases.