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

ASJC Scopus subject areas

  • Chemistry(all)

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