Lewis acidity driven fluorochromism in a lanthanide MOF for highly selective Zr(iv) detection
Abstract
A fluorochromic Eu-based MOF is developed for highly selective Zr(IV) detection. Leveraging the strong Lewis acidity of Zr(IV), competitive coordination to carboxylate sites induces framework dissociation, disrupts ligand-to-metal energy transfer, and produces a distinct red-to-blue luminescence shift, enabling sensitive and selective sensing with a detection limit of 333 nM.

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