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The design of aqueous probes and binders for complex, biologically relevant anions presents a key challenge in supramolecular chemistry. Herein, a tetrahedral assembly with cationic faces and corners is reported that is capable of discriminating between anionic and neutral guests in water. Electrostatic repulsion between subcomponents can be overcome by the addition of an anionic template, or generating...
Ein fluoreszierender Metall–organischer Käfig mit kationischen Wandflächen ist löslich und stabil in Wasser und bindet selektiv Anionen in Wasser gegenüber ihren neutralen Gegenstücken, wie J. Nitschke et al. in ihrer Zuschrift auf S. 4244 berichten. Der Zink(II)‐basierte Käfig ermöglicht eine fluorometrische Bestimmung von Mono‐ und Polyphosphoranionen, z. B. Nucleotiden, bei mikromolaren Konzentrationen...
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