This work was supported by the Netherlands Foundation for Chemical Research (SON) with financial aid from the Netherlands Organization for Scientific Research (NWO). We thank D. M. Rudkevich for helpful discussions.
Solubilization of NaX Salts in Chloroform by Bifunctional Receptors†
Article first published online: 22 DEC 2003
Copyright © 1996 by VCH Verlagsgesellschaft mbH, Germany
Angewandte Chemie International Edition in English
Volume 35, Issue 10, pages 1090–1093, June 3, 1996
How to Cite
Scheerder, J., van Duynhoven, J. P. M., Engbersen, J. F. J. and Reinhoudt, D. N. (1996), Solubilization of NaX Salts in Chloroform by Bifunctional Receptors. Angew. Chem. Int. Ed. Engl., 35: 1090–1093. doi: 10.1002/anie.199610901
- Issue published online: 22 DEC 2003
- Article first published online: 22 DEC 2003
- Manuscript Received: 7 DEC 1995
- allosteric effects;
- complexes with alkali metal halides;
- supramolecular chemistry
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 calixarenes. 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.