Issue 20, 2003
From the journal:

Dalton Transactions

Calix[4]semitube diquinone: a potassium selective redox-active ionophore

Philip R. A. Webber,a   Andrew Cowleya  and  Paul D. Beer*a  

* Corresponding authors

a Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, UK

Abstract

Oxidation of calix[4]semitube with Tl(OCOCF3)3 in TFA (trifluoroacetic acid) affords the novel redox-active ionophore calix[4]semitube diquinone. This receptor displays a remarkable selectivity preference for potassium cations over all other Group 1 metal cations, a property mirroring that of the parent calix[4]semitube, however its kinetics of complexation are relatively slow. The receptor exhibits substantial electrochemical recognition effects towards sodium and potassium cations.

Graphical abstract: Calix[4]semitube diquinone: a potassium selective redox-active ionophore

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Article information

DOI
https://doi.org/10.1039/B307419F
Article type
Paper
Submitted
30 Jun 2003
Accepted
20 Aug 2003
First published
03 Sep 2003

Dalton Trans., 2003, 3922-3926

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Calix[4]semitube diquinone: a potassium selective redox-active ionophore

P. R. A. Webber, A. Cowley and P. D. Beer, Dalton Trans., 2003, 3922 DOI: 10.1039/B307419F

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