A retrievable and highly selective fluorescent probe for monitoring dihydrogen phosphate ions based on a naphthalimide framework

Zhijun Chen, Limin Wang*, Gang Zou, Xiaoming Cao, Yue Wu, Peijun Hu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

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. 

Original languageEnglish
Pages (from-to)323-329
Number of pages7
JournalSPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Volume114
Early online date30 May 2013
DOIs
Publication statusPublished - Oct 2013
Externally publishedYes

Keywords

  • Dihydrogen phosphate anions
  • Fluorescence revival
  • Naphthalimide derivatives
  • Fluorescent probe
  • High selectivity
  • ANION RECOGNITION
  • AQUEOUS-SOLUTION
  • SENSOR
  • RECEPTORS
  • FLUORIDE
  • BINDING
  • H2PO4
  • WATER

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