A new principle for selective sensing cyanide anions based on 2-hydroxy-naphthaldeazine compound

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• 作者：Wei-Tao Gong ; ^{wtgong@dlut.edu.cn}Author Vitae ; Qing-Lan ZhangAuthor Vitae ; Li ShangAuthor Vitae ; Bei GaoAuthor Vitae ; Gui-Ling Ning ; ^{ninggl@dlut.edu.cn}Author Vitae
• 关键词：&ldquo ; Turn-on&rdquo ; fluorescence ; 2-Hydroxy-naphthaldeazine ; Cyanide anions ; Hydrogen bonds ; Aggregation-induced emission
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2013
• 出版时间：February, 2013
• 年：2013
• 卷：177
• 期：Complete
• 页码：322-326
• 全文大小：638 K

文摘

2-Hydroxy-naphthaldeazine (HNA), synthesized readily via one-step condensation from 3-hydroxy-2-naphthaldehyde and hydrazine monohydrate, behaves as ¡°turn-on¡± fluorescent sensing of CN^? selectively. The sensing mechanism was ascribed to the dual influence of hydrogen bonds and aggregation-induced emission, coming from the interactions of HNA and CN^?. The speculation was partially supported by fluorescence emission spectra, UV-vis spectrum, ¹H NMR titration experiments and further particle size analysis.