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Calix[4]tube: A Tobular Receptor with Remarkable Potassium Ion Selectivity

1997; Wiley; Volume: 36; Issue: 17 Linguagem: Inglês

10.1002/anie.199718401

1521-3773

Philippe Schmitt, Paul D. Beer, Michael G. B. Drew, Paul D. Sheen,

DNA and Nucleic Acid Chemistry

Even after three days the uptake of Li+, Na+, Cs+, and Rb+ ions by the novel calix[4]tube receptor 1 is not significant (<70%), whereas K+ ions are complexes within one hour. This remarkable selectivity for K+ ions is reminiscent of that of potassium channel proteins.