Complexation and Conformational Flexibility of Calix[4]arene Dibenzocrown Ethers

Jong Seung Kim; Akira Ohki; Moon Hwan Cho; Jong Kuk Kim; Do Young Ra; Nam Sook Cho; Richard A. Bartsch; Kune Woo Lee; Won Zin Oh

Complexation and Conformational Flexibility of Calix[4]arene Dibenzocrown Ethers

Jong Seung Kim, Akira Ohki, Moon Hwan Cho, Jong Kuk Kim, Do Young Ra, Nam Sook Cho, Richard A. Bartsch, Kune Woo Lee, Won Zin Oh

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

1,3-Dipropyloxycalix[4]arene dibenzocrown ethers were synthesized in the fixed 1,3-alternate conformation by the reaction of 1,3-dipropyloxycalix[4]arenes with a dibenzo dimesylates. Complexation toward alkali metal ions using ISEs showed a high cesium selectivity. Conformational flexibility of the corresponding 1,3-alternate calixcrown ether (4) with respect to the NMR time scale is found to depend on the temperature and polarity of the NMR solvent.

Original language	English
Pages (from-to)	1014-1017
Number of pages	4
Journal	Bulletin of the Korean Chemical Society
Volume	18
Issue number	9
Publication status	Published - 1997
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)

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Complexation and Conformational Flexibility of Calix[4]arene Dibenzocrown Ethers. / Kim, Jong Seung; Ohki, Akira; Cho, Moon Hwan; Kim, Jong Kuk; Ra, Do Young; Cho, Nam Sook; Bartsch, Richard A.; Lee, Kune Woo; Oh, Won Zin.

In: Bulletin of the Korean Chemical Society, Vol. 18, No. 9, 1997, p. 1014-1017.

Research output: Contribution to journal › Article › peer-review

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AU - Kim, Jong Seung

AU - Ohki, Akira

AU - Cho, Moon Hwan

AU - Kim, Jong Kuk

AU - Ra, Do Young

AU - Cho, Nam Sook

AU - Bartsch, Richard A.

AU - Lee, Kune Woo

AU - Oh, Won Zin

PY - 1997

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AB - 1,3-Dipropyloxycalix[4]arene dibenzocrown ethers were synthesized in the fixed 1,3-alternate conformation by the reaction of 1,3-dipropyloxycalix[4]arenes with a dibenzo dimesylates. Complexation toward alkali metal ions using ISEs showed a high cesium selectivity. Conformational flexibility of the corresponding 1,3-alternate calixcrown ether (4) with respect to the NMR time scale is found to depend on the temperature and polarity of the NMR solvent.

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