Abstract
Abstract 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, 1 H NMR titration experiments and further particle size analysis.
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