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Seung Whan Ko

Chonnam National University

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Publication

Featured researches published by Seung Whan Ko.

Supramolecular Chemistry | 2007

The Molecular Recognition of Amines with Calix[6]arene: Conclusive X-ray and NMR Evidence for Endo and Exo Complex Formation between Calix[6]arene and Amines

Young Ju Lee; Ki Deok Park; Hyoung Min Yeo; Seung Whan Ko; Byung Ju Ryu; Kye Chun Nam

Calix[6]arene formed an endo-complex with piperidine and its inclusion properties were investigated by NMR spectroscopy and X-ray crystallography. Especially, the DOSY spectrum showed that piperidine formed a unique complex with calix[6]arene.

Journal of Inclusion Phenomena and Macrocyclic Chemistry | 2001

Synthesis and Ion Binding Properties of Cesium Selective Quadruply Bridged Calix[6]arenes

Kye Chun Nam; Seung Whan Ko; Sung Ok Kang; Seung-Hyun Lee; Dae Soon Kim

Several quadruply bridged calix[6]arenes were prepared in high yield by the reaction of various 1,4-di-O-alkylated calix[6]arenes with 1,2,4,5-tetrakis-(bromomethyl)benzene in the presence of Cs2CO3. The alkali metal extraction study established that this compound shows the high selectivity toward Cs+ among alkali metal cations. The cesium binding characteristics were investigated with 1H NMR and UV spectroscopy.

Journal of the American Chemical Society | 2003

A new fluoride selective fluorescent as well as chromogenic chemosensor containing a naphthalene urea derivative.

Eun Jin Cho; Jung Wha Moon; Seung Whan Ko; Jin Yong Lee; Sook Kyung Kim; Juyoung Yoon; Kye Chun Nam

Bulletin of The Korean Chemical Society | 2003

Synthesis and anion binding properties of the bridged urea derivatives of calix[4]arene

Yong Shik Yang; Seung Whan Ko; In Hee Song; Byung Ju Ryu; Kye Chun Nam

Bulletin of The Korean Chemical Society | 1999

Urea Derivatives of p-tert-Butylcalix[4]arenes: Anion Selective Neutral Receptors

Kye Chun Nam; Sung Ok Kang; Seung Whan Ko

Electroanalysis | 2003

Novel Cesium‐Selective Electrodes Based on Lipophilic 1,3‐Bisbridged Cofacial‐calix[6]crowns

Seungwon Jeon; Heekyoung Yeo; Hyo Kyoung Lee; Seung Whan Ko; Kye Chun Nam

Bulletin of The Korean Chemical Society | 2002

Highly Cesium Selective Calix[6]arene Receptors: Synthesis, Structure and Cesium Binding Properties of Calix[6]arene Biscrown

Seung Whan Ko; Yong Shik Yang; Jung Hwa Mun; Ki-Min Park; Shim Sung Lee; Kye Chun Nam

Bulletin of The Korean Chemical Society | 2001

Polymeric membrane cesium-selective electrodes based on quadruply-bridged calix[6]arenes

Eun Mi Choi; Hyejin Oh; Seung Whan Ko; Yong-Kook Choi; Kye Chun Nam; Seungwon Jeon

Bulletin of The Korean Chemical Society | 1999

Upper Rim Urea Derivative of Calix[4]arene: Anion Selective Neutral Receptor

Kye Chun Nam; Jong Chul Chun; Sung Ok Kang; Seung Whan Ko

Bulletin of The Korean Chemical Society | 2004

Synthesis, X-ray Structure and Binding Properties of Calix(6)arene-1,4-2,5-Biscrowns

Seung Whan Ko; Byung Ju Ryu; Ki-Min Park; Kwang Hyun No; Jong Seung Kim; Kye Chun Nam

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Kye Chun Nam

Chonnam National University

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Byung Ju Ryu

Chonnam National University

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Hyoung Min Yeo

Chonnam National University

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Ki-Min Park

Gyeongsang National University

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Seungwon Jeon

Chonnam National University

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Sung Ok Kang

Chonnam National University

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Hyejin Oh

Chonnam National University

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Hyo Kyoung Lee

Chonnam National University

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Jong Min Kim

Kosin University Gospel Hospital

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Shim Sung Lee

Gyeongsang National University

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