1,3-Dipropyloxycalixarene dibenzocrown ethers were synthesized in the fixed 1,3-alternate conformation by the reaction of 1,3-dipropyloxycalixarenes 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.
|Number of pages||4|
|Journal||Bulletin of the Korean Chemical Society|
|Publication status||Published - 1997 Dec 1|
ASJC Scopus subject areas