A 3-HYDROXYFLAVONE DERIVATIVE AS FLUORESCENCE CHEMOSENSOR FOR COPPER AND ZINC IONS

Authors

  • Huiqin Gao
  • Xiangwen Wu College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, 88 East Wenhua Road, Lixia District, Jinan 250014, China

DOI:

https://doi.org/10.1007/4128

Keywords:

copper ion, hydroxyflavone, zinc ion, chemosensor.

Abstract

A 3-hydroxyflavone derivative as fluorescence chemosensor for copper and zinc ions has been synthesized. Its recognition properties for copper and zinc ions in aqueous solution were investigated based on UV-vis absorption and fluorescence spectra change. The compound exhibits color change from colorless to yellow and quenching of green fluorescence in the presence of copper ions in aqueous solution due to coordination reaction. In turn, the addition of zinc ions induces the color change from colorless to green and fluorescence enhancement of the compound. The complex ratios between the sensor molecule and copper(zinc) ions are 1:1 and 1:2, respectively, based on the Job's plots and in situ mass spectra. Thus, this compound can selectively recognize copper and zinc ions, and the recognition also can be observed by naked eye.

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Published

2018-03-23

Issue

Vol. 54 No. 2 (2018)

Section

Original Papers