Synthesis of a novel calix[4]azacrown ionophore and its extraction ability toward Cr(VI)

  • Fatih Ozcan
  • Sait Malkondu
  • Ahmet Kocak
  • Nuriye Kocak
  • Mustafa YilmazEmail author
Original Article


The present study describes the synthesis of a novel extractant p-tert-butyl-calix[4]azacrown ionophore (5) and evaluation of its extraction capability toward dichromate ion from aqueous solution. At first, p-tert-butyl-calix[4]azacrown ionophore (5) has been synthesized from the condensation of p-tert-butyl-calix[4]arene diamine (3) with N-(4-formylphenyl)-aza-15-crown-5 (4). The studies regarding the removal of dichromate ion from the aqueous solutions have been carried out in the liquid–liquid extraction systems. The extraction results showed that p-tert-butyl-calix[4]azacrown derivative (5) exhibited generally higher affinity towards dichromate ion than both 3 and 4 at all studied pHs.


Calixazacrown Dichromate anion Liquid–liquid extraction 



The authors gratefully acknowledge financial support from SU Research Foundation.


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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  • Fatih Ozcan
    • 1
    • 2
  • Sait Malkondu
    • 1
  • Ahmet Kocak
    • 1
  • Nuriye Kocak
    • 3
  • Mustafa Yilmaz
    • 1
    Email author
  1. 1.Department of Chemistry, Faculty of ScienceSelcuk UniversityKonyaTurkey
  2. 2.Advanced Technology Research and Application CenterKonyaTurkey
  3. 3.Department of Science Education, Faculty of EducationSelcuk UniversityKonyaTurkey

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