Ivan Jabin and collaborators in Belgium and France have designed a novel Calix[6]crypturea receptor with unique binding properties that are acid-base controllable.
This external stimulus is used to modulate the flexibility of the calixarene, allowing it to bind either neutral molecules, anions, primary/secondary ammonium ions, quaternary ammonium ions, with remarkable selectivity.
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Acid–base modulation of a versatile heteroditopic calix[6]arene based receptor Damien Cornut, Jérôme Marrot, Johan Wouters and Ivan Jabin
Org. Biomol. Chem., 2011, Advance Article
DOI: 10.1039/C1OB05759F, Paper
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