Guest Encapsulation in a Water-Soluble Molecular Capsule Based on Ionic Interactions

We report on the synthesis and characterization of a water-soluble molecular capsule based on multiple ionic interactions. The assembly has been studied by means of 1H NMR, ESI-MS spectroscopy, and isothermal titration calorimetry (ITC), showing an association constant in water, K a, of 3.3 × 104 M-...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2003-08, Vol.125 (33), p.9946-9947
Main Authors: Corbellini, Francesca, Di Costanzo, Luigi, Crego-Calama, Mercedes, Geremia, Silvano, Reinhoudt, David N
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
General and physical chemistry
Solution properties
Solutions
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Summary:We report on the synthesis and characterization of a water-soluble molecular capsule based on multiple ionic interactions. The assembly has been studied by means of 1H NMR, ESI-MS spectroscopy, and isothermal titration calorimetry (ITC), showing an association constant in water, K a, of 3.3 × 104 M-1. The achieved water solubility of the system opens the possibility of using this supramolecular assembly for molecular recognition in pure water. Encapsulation studies have been performed and are reported in this Communication.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja034535e