Solubilization of NaX salts in chloroform by bifunctional receptors

Jurgen Scheerder, John P.M. van Duynhoven, Johan F.J. Engbersen, David N. Reinhoudt

Research output: Contribution to journalArticleAcademicpeer-review

204 Citations (Scopus)
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First the cation, then the anion. This describes the complexation of alkali metal halides with bifunctional receptors like that on the right (R = n‐octyl) based on calix[4]arenes. The uncomplexed ligand has a strong intramolecular hydrogen bond between the urea moieties, which is disrupted by the conformational change induced by complexation of a Na+ ion. Only then is an anion like Cl− bound in the upper portion of the calixarene.
Original languageEnglish
Pages (from-to)1090-1093
JournalAngewandte Chemie, International Edition in English
Issue number10
Publication statusPublished - 1996


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