Journal of the Korean Electrochemical Society (전기화학회지)
- Volume 3 Issue 2
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- Pages.69-71
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- 2000
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- 1229-1935(pISSN)
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- 2288-9000(eISSN)
DOI QR Code
Ionic Recognition with Quinone-Derivatized Calixarenes in Solution and at Self-Assembled Monlayers
- Kim Hasuck (Department of Chemistry and Center for Molecular Catalysis, Seoul National University) ;
- Kang Sun Kil (Department of Chemistry and Center for Molecular Catalysis, Seoul National University) ;
- Chung Taek Dong (Department of Chemistry and Center for Molecular Catalysis, Seoul National University)
- Published : 2000.05.01
Abstract
Redox-active calix[4]arenes with carboxylic acid and disulfide groups were prepared and spontaneous deposition on silver and gold surfaces was observed. Owing to their unusual structure, the calix[4]arenes exhibit selective affinity fur alkaline earth metal ions in aqueous media. When annular ionophores are immobilized on the surface, voltammetric and spectroscopic studies show the entrapment of metal ions. Furthermore, it was possible to reversibly capture and remove the ions using strong chelating agents such as ethylenediaminetetraacetic acid (EDTA).
카르복시산과 이황하물 다리를 가지며 산화환원 활성이 있는 칼릭스[4]아렌을 합성하였고 그것이 은과 금 표면 위에 자발적으로 흡착하는 것을 관찰하였다. 칼릭스[4]아렌은 특이한 구조 때문에 수용액에서 알칼리 토금속이온에 선택적인 친화력을 보인다 한편 둥그런 이온 수용체를 전극 위에 고정시켰을 때 금속 이온을 포획하는 것을 전압전류법 및 분광학적인 연구를 통해 확인하였다. 아울러 EDTA와 같은 강한 킬레이트제를 이용하여 이온을 가역적으로 제거할 수 있음을 보였다.
Keywords
- Redox-active calixarene;
- Water-soluble calixarene;
- Self-assembledmonolayer;
- Ionophore;
- Selective recognition