Selective single recognition of F- by long-chain alkoxyphenylhydrazone derivatives
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Clc Number:

O657.3

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National Natural Science Foundation of China; Gansu Provincial Science and Technology Program Funded Project; Gansu Basic Research and Innovation Group Project; College Students Innovation and Entrepreneurship Training Program Project.

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    Abstract:

    A long-chain alkoxyphenylhydrazone derivatives R has been synthesized and characterized through 1H NMR, 13C NMR, FT-IR and HR-MS. In UV-Vis and naked eye recognition experiments, the receptor R exhibited obvious spectral and color changes in response to F-, Ac- and H2PO4- in DMSO solution. Moreover, receptor R showed selectively single recognize F- in 5%H2O 95%DMSO solution. According to the Benesi-Hidebrand equation and Job curve, the complex constants of the receptor R with anions were above 3.07 ? 103 L/mol, and form a 1 : 1 hydrogen bond complex with F-. Finally, the mechanism of anion recognition process was explained through 1H NMR titration and theoretical calculation.

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History
  • Received:June 18,2020
  • Revised:September 04,2020
  • Adopted:September 09,2020
  • Online: November 23,2020
  • Published: