Journal
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Volume 114, Issue -, Pages 323-329Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2013.05.072
Keywords
Dihydrogen phosphate anions; Fluorescence revival; Naphthalimide derivatives; Fluorescent probe; High selectivity
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Funding
- Fundamental Research Funds for the Central Universities
- Opening Foundation of Zhejiang Provincial Top Key Discipline
- National Nature Science Foundation of China [20672035, 21272069]
- Baihehua Group
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A novel selective fluorescent chemosensor based on naphthalimide derivatives (AN-SB) was synthesized and characterized. Once combined with Cu2+, compound AN-SB could give rise to a visible yellow to orange color change and fluorescence quenching, while other metal ions showed subtle disturbance. The complex (AN-SB-Cu2+) formed by Cu2+ and AN-SB displayed high specificity for H2PO4-. Among the various anions, only H2PO4- induced the revival of color and fluorescence of AN-SB, resulting in off-on type sensing of H2PO4- anion. The signal transduction occured via reversible formation-separation of complex AN-SB-Cu2+, however, slight changes were observed in the presence of other anions. (C) 2013 Elsevier B.V. All rights reserved.
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