Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2013-02-01

Journal: SENSORS AND ACTUATORS B-CHEMICAL

Included Journals: EI、SCIE

Volume: 177

Page Number: 322-326

ISSN: 0925-4005

Key Words: "Turn-on" fluorescence; 2-Hydroxy-naphthaldeazine; Cyanide anions; Hydrogen bonds; Aggregation-induced emission

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, H-1 NMR titration experiments and further particle size analysis. (c) 2012 Elsevier B.V. All rights reserved.