Self-Assembly of a Molecular Capsule Driven by Electrostatic Interaction in Aqueous Solution

A self-assembling molecular capsule based on electrostatic interaction has been designed and its structure is investigated by dynamic 1H NMR. The hydrodynamic description resulting from relaxation and PGSE 1H NMR experiments indicates that association between oppositely charged hydrophilic β-cyclode...

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Bibliographic Details
Published in:Journal of the American Chemical Society 1998-08, Vol.120 (33), p.8438-8447
Main Authors: Hamelin, Bertrand, Jullien, Ludovic, Derouet, Christiane, Hervé du Penhoat, Catherine, Berthault, Patrick
Format: Article
Language:English
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Summary:A self-assembling molecular capsule based on electrostatic interaction has been designed and its structure is investigated by dynamic 1H NMR. The hydrodynamic description resulting from relaxation and PGSE 1H NMR experiments indicates that association between oppositely charged hydrophilic β-cyclodextrin derivatives in 50 mM KCl aqueous solution corresponds to dimerization with an interdistance between interacting units lying in the 0.4−1.1 nm range with a maximal probability at 0.6 nm.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja980046g