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Schiff base modified α-cyanostilbene derivative with aggregation-induced emission enhancement characteristics for Hg2+ detection
Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University, Hefei, China.
Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University, Hefei, China.
Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University, Hefei, China.
Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University, Hefei, China.
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2014 (English)In: Sensors and actuators. B, Chemical, ISSN 0925-4005, E-ISSN 1873-3077, Vol. 202, 209-216 p.Article in journal (Refereed) Published
Abstract [en]

A Schiff base functionalized α-cyanostilbene derivative (TS) has been synthesized via a simple and straightforward method and characterized by FT-IR, 1H NMR, 13C NMR and mass spectra. TS possessed excellent AIEE properties and exhibited turn-on fluorescent responses to Hg2+. The results of UV-vis and fluorescence titration experiments revealed that TS was selective and sensitive to Hg2+ in pure THF and aqueous environment. The coordination of TS and Hg2+ ions generated TS-Hg complex locked the dancing molecule because of the flexible chain in the middle of the molecule and the complex was lower soluble induced formation of large aggregates that further limited the non-radiative relaxation channel enhanced emission after adding Hg2+ ions in aqueous solution, which had been confirmed by 1H NMR and dynamic light scattering (DLS). © 2014 Published by Elsevier Inc.

Place, publisher, year, edition, pages
Elsevier , 2014. Vol. 202, 209-216 p.
Keyword [en]
Aggregation-induced emission enhancement (AIEE); Chemosensor; Fluorescence; Mercury; Schiff base
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-109965DOI: 10.1016/j.snb.2014.05.057ISI: 000339994900028Scopus ID: 2-s2.0-84902160501OAI: oai:DiVA.org:liu-109965DiVA: diva2:746287
Note

Funding Agencies|201310357136, National Natural Science Foundation of China; 21101001, NSFC, National Natural Science Foundation of China; 50873001, NSFC, National Natural Science Foundation of China; 61107014, NSFC, National Natural Science Foundation of China

Available from: 2014-09-12 Created: 2014-08-29 Last updated: 2017-12-05Bibliographically approved

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Zhang, Xuanjun

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