Bis(calix[4]diquinone) receptors: cesium- and rubidium-selective redox-active ionophores

Webber, P.R.A., Beer, P.D., Chen, G.Z., Felix, V. and Drew, M.G.B. (2003) Bis(calix[4]diquinone) receptors: cesium- and rubidium-selective redox-active ionophores. Journal of the American Chemical Society, 125 (19). pp. 5774-5785. ISSN 0002-7863 doi: 10.1021/ja029740t

Abstract/Summary

A new class of redox-active ionophore comprised of two calix[4]diquinone moieties connected through either alkylene or pyridylene linkages has been developed. Spectroscopic and electrochemical investigations, X-ray crystal structure analyses, and molecular modeling studies show butylene- and propylene-linked members of this family of redox-active receptors exhibit remarkable selectivity preferences and substantial electrochemical recognition effects toward cesium and rubidium cations.