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Org Lett. 2013 Jul 19;15(14):3518-21. doi: 10.1021/ol401120a. Epub 2013 Jul 9.

Selective and sensitive fluoride detection through alkyne cruciform desilylation.

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1
Department of Chemistry, University of Houston, 112 Fleming Building, Houston, Texas 77204-5003, USA.

Abstract

Desilylation of silylethynyl-substituted benzobisoxazole cruciforms can be achieved using stoichiometric amounts of fluoride, leading to a significant change in their UV-vis absorption and fluorescence. This response is observable at micromolar concentrations of fluoride, and, in the case of a triisopropylsilyl-substituted cruciform fluorophore, extraordinarily selective for fluoride over other small inorganic anions, including hydroxide, acetate, and phosphate.

PMID:
23837538
DOI:
10.1021/ol401120a
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