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A readily accessible multifunctional probe: simultaneous recognition of the cation ZN²⁺ and the anion F⁻ via distinguishable wavelengths

Zeng, Li; Zhao, Jiang Lin; Mu, Lan; Zeng, Xi; Wei, Gang; Redshaw, Carl; Jin, Zongwen


Zongwen Jin

Lan Mu

Gang Wei

Li Zeng

Xi Zeng

Jiang Lin Zhao


The probe 1 was readily prepared via condensation of 8-formyl-7-hydroxy-coumarin and carbonic dihydrazide in a one-step procedure. Probe 1 exhibited high sensitivity and selectivity towards Zn²⁺ and F⁻ through a “turn-on” fluorescence response and/or ratiometric colorimetric response with low detection limits of the order of 10-8 M. The complex behaviour was fully investigated by spectral titration, isothermal titration calorimetry, 1H NMR spectroscopic titration and mass spectrometry. Interestingly, probe 1 not only recognizes the cation Zn²⁺ and the anion F⁻, but can also distinguish between these two ions via the max wavelength in their UV-vis spectra (360 nm for 1-Zn²⁺ versus 400 nm for 1-F⁻ complex) or their fluorescent spectra (λₑₓ / λₑm = 360 nm/ 454 nm for 1-Zn²⁺ versus λₑₓ / λₑm = 400 nm/ 475 nm for 1-F⁻ complex) due to their differing red-shifts. Additionally, probe 1 has been further explored in the detection of Zn²⁺ in living cells.

Journal Article Type Article
Publication Date May 3, 2017
Journal Chinese journal of inorganic chemistry
Print ISSN 1001-4861
Peer Reviewed Peer Reviewed
Volume 33
Issue 5
Pages 769-778
Keywords 8-formyl-7-hydroxy-coumarin, Zn²⁺ and F⁻, Distinguishable wavelengths, Living cells
Publisher URL
Additional Information This is the author's version of an article published in Chinese journal of inorganic chemistry, 2017, v.33, issue 5.


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