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High Affinity of Water-Soluble Cryptophanes for Cesium Cations
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2012 (English)In: Journal of Organic Chemistry, ISSN 0022-3263, E-ISSN 1520-6904, Vol. 77, no 2, 1198-1201 p.Article in journal (Refereed) Published
Abstract [en]

Exceptionally high affinity for cesium cations was achieved in aqueous solution using two enantiopure cryptophanes. Complexation of cesium was evidenced by Cs-133 NMR spectroscopy and by electronic circular dichroism (ECD). Binding constants as high as 6 X 10(9) M-1 have been measured by isothermal titration calorimetry (ITC). Very strong complexation of rubidium cations (K similar to 10(6) M-1) has also been measured. Chiral hosts allowed the detection of the two cations at low concentrations (mu M) using ECD.

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2012. Vol. 77, no 2, 1198-1201 p.
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Organic Chemistry
URN: urn:nbn:se:kth:diva-90648DOI: 10.1021/jo202259rISI: 000299238400045ScopusID: 2-s2.0-84856104601OAI: diva2:509926
Swedish eā€Science Research Center

QC 20120313

Available from: 2012-03-14 Created: 2012-02-27 Last updated: 2013-04-08Bibliographically approved

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Linares, Mathieu
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