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 |
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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)