Calix[4]arene Having a Convergent Carboxylic Acid Function: Synthesis and Ion Binding Properties of a New Cs+-selective Ionophore

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  • Hyun Jae Cho
    Department of Chemistry, Chung-Ang UniversitySeoul 156-756 , Korea
  • Ji Young Kim
    Department of Chemistry, Chung-Ang UniversitySeoul 156-756 , Korea
  • Suk-Kyu Chang
    Department of Chemistry, Chung-Ang UniversitySeoul 156-756 , Korea

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Abstract

<jats:title>Abstract</jats:title> <jats:p>Calix[4]arene bearing a convergent carboxylic acid function employing the Kemp’s triacid motif exhibited a pronounced selective ionophoric behavior toward Cs+ over other alkali metal ions. The selectivities of calix[4]arene-acid for Cs+ over Rb+, K+, and Na+ ions assessed by competitive transport experiments were 7.9, 26, and 121, respectively.</jats:p>

Journal

  • Chemistry Letters

    Chemistry Letters 28 (6), 493-494, 1999-06-01

    Oxford University Press (OUP)

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