Electrochemical Studies for Cation Recognition with Diazo-Coupled Calix[4]arenes
The electrochemical properties of diazophenylcalix[4]arenes bearing ortho-carboxyl group (o-CAC) and ortho-ester group (o-EAC), respectively, in the presence of various metal ions were investigated by voltammetry in CH3CN. o-CAC and o-EAC showed voltammetric changes toward divalent metal ions and no...
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Wiley
2015-01-01
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| Series: | Journal of Analytical Methods in Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2015/579463 |
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| author | Bongsu Kim Tae Hyun Kim |
| author_facet | Bongsu Kim Tae Hyun Kim |
| author_sort | Bongsu Kim |
| collection | DOAJ |
| description | The electrochemical properties of diazophenylcalix[4]arenes bearing ortho-carboxyl group (o-CAC) and ortho-ester group (o-EAC), respectively, in the presence of various metal ions were investigated by voltammetry in CH3CN. o-CAC and o-EAC showed voltammetric changes toward divalent metal ions and no significant changes with monovalent alkali metal ions. However, o-CAC preferentially binds with alkaline earth and transition metal ions, whereas no significant changes in voltammetric signals are observed in o-EAC with alkaline earth metal ions. o-EAC only binds with other transition metal ions. This can be explained on metal ion complexation-induced release of proton from the azophenol to the quinone-hydrazone tautomer followed by internal complexation of the metal ion with aid of nitrogen atoms and ortho-carbonyl groups in the diazophenylazocalix[4]arenes. |
| format | Article |
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| institution | Kabale University |
| issn | 2090-8865 2090-8873 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
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| series | Journal of Analytical Methods in Chemistry |
| spelling | doaj-art-9dd2a760041440648647984f9a8bc8ae2025-02-03T01:23:54ZengWileyJournal of Analytical Methods in Chemistry2090-88652090-88732015-01-01201510.1155/2015/579463579463Electrochemical Studies for Cation Recognition with Diazo-Coupled Calix[4]arenesBongsu Kim0Tae Hyun Kim1Department of Chemistry, Soonchunhyang University, Asan 336-746, Republic of KoreaDepartment of Chemistry, Soonchunhyang University, Asan 336-746, Republic of KoreaThe electrochemical properties of diazophenylcalix[4]arenes bearing ortho-carboxyl group (o-CAC) and ortho-ester group (o-EAC), respectively, in the presence of various metal ions were investigated by voltammetry in CH3CN. o-CAC and o-EAC showed voltammetric changes toward divalent metal ions and no significant changes with monovalent alkali metal ions. However, o-CAC preferentially binds with alkaline earth and transition metal ions, whereas no significant changes in voltammetric signals are observed in o-EAC with alkaline earth metal ions. o-EAC only binds with other transition metal ions. This can be explained on metal ion complexation-induced release of proton from the azophenol to the quinone-hydrazone tautomer followed by internal complexation of the metal ion with aid of nitrogen atoms and ortho-carbonyl groups in the diazophenylazocalix[4]arenes.http://dx.doi.org/10.1155/2015/579463 |
| spellingShingle | Bongsu Kim Tae Hyun Kim Electrochemical Studies for Cation Recognition with Diazo-Coupled Calix[4]arenes Journal of Analytical Methods in Chemistry |
| title | Electrochemical Studies for Cation Recognition with Diazo-Coupled Calix[4]arenes |
| title_full | Electrochemical Studies for Cation Recognition with Diazo-Coupled Calix[4]arenes |
| title_fullStr | Electrochemical Studies for Cation Recognition with Diazo-Coupled Calix[4]arenes |
| title_full_unstemmed | Electrochemical Studies for Cation Recognition with Diazo-Coupled Calix[4]arenes |
| title_short | Electrochemical Studies for Cation Recognition with Diazo-Coupled Calix[4]arenes |
| title_sort | electrochemical studies for cation recognition with diazo coupled calix 4 arenes |
| url | http://dx.doi.org/10.1155/2015/579463 |
| work_keys_str_mv | AT bongsukim electrochemicalstudiesforcationrecognitionwithdiazocoupledcalix4arenes AT taehyunkim electrochemicalstudiesforcationrecognitionwithdiazocoupledcalix4arenes |