Abstract
Finding fluoride: An azo dye functionalized with tert-butyldimethylsilyl ether has been synthesized and used as a selective chromogenic fluoride sensor in the acetonitrile/water mixtures. The chromogenic response arises from the fluoride-induced hydrolysis of the silyl ether moiety, which yields a highly colored phenolate anion. The sensor molecule can be grafted to silica to make dip-sticks for fluoride sensing. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
