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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.

Place, publisher, year, edition, pages
2012. Vol. 77, no 2, 1198-1201 p.
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Organic Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-90648DOI: 10.1021/jo202259rISI: 000299238400045Scopus ID: 2-s2.0-84856104601OAI: oai:DiVA.org:kth-90648DiVA: diva2:509926
Funder
Swedish eā€Science Research Center
Note

QC 20120313

Available from: 2012-03-14 Created: 2012-02-27 Last updated: 2017-12-07Bibliographically approved

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