We report the first example of transmembrane anion transport mediated by a hydrogen-bonding homo[2]catenane. The catenane outperforms its non-interlocked analogues in chloride transport, highlighting the advantages of interlocked architectures in ionophore design. The synthesis of this electroneutral [2]catenane was enabled by doubly charged sulfate (SO42-), acting as a powerful anionic template.
K. M. Bąk, O. Kisiel, D. Mondal, M. Zimnicka and M. J. Chmielewski, Chem. Commun., 2025, Accepted Manuscript , DOI: 10.1039/D5CC02888D
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