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Synthesis of a novel calix[4]azacrown ionophore and its extraction ability toward Cr(VI) |
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| Authors: | Fatih Ozcan Sait Malkondu Ahmet Kocak Nuriye Kocak Mustafa Yilmaz |
| Institution: | 1. Department of Chemistry, Faculty of Science, Selcuk University, 42031, Konya, Turkey 2. Advanced Technology Research and Application Center, 42075, Konya, Turkey 3. Department of Science Education, Faculty of Education, Selcuk University, 42031, Konya, Turkey |
| Abstract: | The present study describes the synthesis of a novel extractant p-tert-butyl-calix4]azacrown ionophore (5) and evaluation of its extraction capability toward dichromate ion from aqueous solution. At first, p-tert-butyl-calix4]azacrown ionophore (5) has been synthesized from the condensation of p-tert-butyl-calix4]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-calix4]azacrown derivative (5) exhibited generally higher affinity towards dichromate ion than both 3 and 4 at all studied pHs. |
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