Novel Strategies for the Complexation of Neutral Guest Molecules by Synthetic Macrocyclic Hosts
- 1 September 1988
- journal article
- research article
- Published by Taylor & Francis in Journal of Coordination Chemistry
- Vol. 18 (1-3) , 21-43
- https://doi.org/10.1080/00958978808080686
Abstract
Complexes of macrocyclic polyethers with neutral guests have been studied in solution. The first part, a systematic study of complexes of malononitrile with a variety of macrocyclic polyethers, allowed the evaluation of the thermo-dynamic parameters of complexation. The second part deals with the complexation of urea. Complexes with simple 18-membered macrocycles were prepared. Protonation of urea allowed the phase transfer of urea from aqueous to chloroform solution. Finally the complexation of urea by 2-carboxy-1,3-xylyl crown ethers is described.Keywords
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