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Article Dans Une Revue Angewandte Chemie International Edition Année : 2022

Self‐Assembly Synthesis of a [2]Catenane Co II Single‐Molecule Magnet

Résumé

We describe herein the self-assembly synthesis of an octanuclear CoII [2]catenane {[Co4(H2L)6]216+} formed by the mechanical interlocking of two {[Co4(H2L)6]8+} rectangles of unprecedented topology. Subtle manipulation of the synthetic conditions allows the isolation of a mixed-valence [Co2III/Co2II]10+ non-catenated rectangle. The CoII centers in the [2]catenane exhibit slow relaxation of their magnetic moment, i. e. single-molecule magnet properties, dominated by quantum tunneling and Raman relaxation processes. This work shows that metallo-supramolecular chemistry can precisely control the organization of single-molecule magnets in topologically complex arrangements.
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hal-03531148 , version 1 (18-01-2022)

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Benjamin H Wilson, Jas S Ward, David C Young, Jun‐liang Liu, Corine Mathonière, et al.. Self‐Assembly Synthesis of a [2]Catenane Co II Single‐Molecule Magnet. Angewandte Chemie International Edition, 2022, 61 (4), pp.e202113837. ⟨10.1002/anie.202113837⟩. ⟨hal-03531148⟩

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