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Article Abstract
Novel resorcin[4]arene-based molecular tweezers functionalized with dual benzo-crown-ether moieties were successfully synthesized. These macrocycles exhibit pH-responsive switching between vase and kite conformations, enabling the reversible encapsulation of C under basic conditions primarily driven by dispersion-dominated interactions and efficient acid-triggered release. Remarkably, one of these macrocycles further demonstrates selective fluorescence sensing of barium ions, thus rendering this particular derivative a bifunctional system capable of integrating both fullerene recognition and cation detection in a single molecular architecture.
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