Cesium- and rubidium-selective redox-active Bis(calix[4]diquinone) ionophores

The length of the bridging alkylene chain between two calix[4]diquinone moieties determines the selectivity of the receptors for Group 1 metal ions. These redox-active receptors exhibit remarkable selectivity preferences and substantial electrochemical recognition effects towards Cs+ and Rb+ ions. T...

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Bibliographic Details
Main Authors: Webber, P, Chen, G, Drew, M, Beer, P
Format: Journal article
Language:English
Published: 2001
Description
Summary:The length of the bridging alkylene chain between two calix[4]diquinone moieties determines the selectivity of the receptors for Group 1 metal ions. These redox-active receptors exhibit remarkable selectivity preferences and substantial electrochemical recognition effects towards Cs+ and Rb+ ions. The solid-state crystal structure of the Cs+ complex of a bis(calix[4]diquinone) derivative is shown (green: Cs+, red: oxygen).