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Cesium‐ and Rubidium‐Selective Redox‐Active Bis(calix[4]diquinone) Ionophores
Author(s) -
Webber Philip R. A.,
Chen George Z.,
Drew Michael G. B.,
Beer Paul D.
Publication year - 2001
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20010618)40:12<2265::aid-anie2265>3.0.co;2-1
Subject(s) - rubidium , chemistry , selectivity , calixarene , redox , electrochemistry , caesium , inorganic chemistry , crystal structure , ion , metal ions in aqueous solution , metal , molecule , potassium , crystallography , organic chemistry , electrode , catalysis
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).