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A new chemosensor Sz based on Schiff-base group as recognition site and naphthalene as the fluorescence signal group was designed and synthesised. It could fluorescent “turn-on” detect cyanide (CN − ) via a novel mechanism of nucleophilic addition induced Schiff-base hydrolysis. Adding the CN − into the solution of Sz could induce Sz to emit blue fluorescence at 435nm instantly. Moreover,...
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