Chloride-anion-templated synthesis of a strapped-porphyrin-containing catenane host system
journal contributionposted on 2023-05-18, 14:46 authored by Brown, A, Langton, MJ, Nathan KilahNathan Kilah, Thompson, AL, Beer, PD
The synthesis, structure and anion-recognition properties of a new strapped-porphyrin-containing catenane anion host system are described. The assembly of the catenane is directed by discrete chloride anion templation acting in synergy with secondary aromatic donor–acceptor and coordinative pyridine–zinc interactions. The catenane incorporates a three-dimensional, hydrogen-bond-donating anion-binding pocket; solid-state structural analysis of the catenane⋅chloride complex reveals that the chloride anion is encapsulated within the catenane’s interlocked binding cavity through six convergent CH⋅⋅⋅⋅Cl and NH⋅⋅⋅Cl hydrogen-bonding interactions and solution-phase 1H NMR titration experiments demonstrate that this complementary hydrogen-bonding arrangement facilitates the selective recognition of chloride over larger halide anions in DMSO solution.
Publication titleChemistry: A European Journal
Department/SchoolSchool of Natural Sciences
PublisherWiley-V C H Verlag Gmbh
Place of publicationPo Box 10 11 61, Weinheim, Germany, D-69451
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