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

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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 languageEnglish
Pages (from-to)1014-1017
Number of pages4
JournalBulletin of the Korean Chemical Society
Volume18
Issue number9
Publication statusPublished - 1997 Dec 1

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ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Kim, J. S., Ohki, A., Cho, M. H., Kim, J. K., Ra, D. Y., Cho, N. S., Bartsch, R. A., Lee, K. W., & Oh, W. Z. (1997). Complexation and Conformational Flexibility of Calix[4]arene Dibenzocrown Ethers. Bulletin of the Korean Chemical Society, 18(9), 1014-1017.