Ion Complexation Properties of Calix[6]Arene Derivatives: I. 1,4-Calix[6]Crown-4 Derivatives
- 1 January 2001
- journal article
- research article
- Published by Taylor & Francis in Supramolecular Chemistry
- Vol. 12 (4) , 445-450
- https://doi.org/10.1080/10610270108027476
Abstract
A series of 1,4-p-tert-butyl-calix[6]crown-4 tetraesters, tetraamides, tetraacids with defined conformation have been synthesized, and their complexation properties towards metal ions and alkyl ammonium ions were investigated systematically. It was found that 1,4-p-tert-butyl-calix[6]crown-4 tetraethylester (3a) and 1,4-p-tert-butyl-calix[6]benzocrown-4 tetramethyl-ester (4b) show high selectivity towards Na+, Li+, respectively and all of them exhibit high complexation abilities towards Et2NH2 + cation.Keywords
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