Published in

American Chemical Society, Journal of Organic Chemistry, 2(77), p. 1198-1201, 2012

DOI: 10.1021/jo202259r

Links

Tools

Export citation

Search in Google Scholar

High Affinity of Water-Soluble Cryptophanes for Cesium Cations

Journal article published in 2011 by Thierry Brotin, Roland Montserret, Aude Bouchet ORCID, Dominique Cavagnat, Mathieu Linares, Thierry Buffeteau
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
  • Must obtain written permission from Editor
  • Must not violate ACS ethical Guidelines
Upload
Orange circle
Postprint: archiving restricted
  • Must obtain written permission from Editor
  • Must not violate ACS ethical Guidelines
Upload
Red circle
Published version: archiving forbidden
Policy details
Data provided by SHERPA/RoMEO

Abstract

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