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Molecular Structure of a [3]-Catenate: Curling Up of the Interlocked System by Interaction between the Two Copper Complex Subunits†
†
This work was supported by the Centre National de la Recherche Scientifique (CNRS). We would like to thank P. Maltese for his contribution to the NMR study.
Graphical Abstract
Other than the formula would suggest, 12⊕ has a globular “tertiary structure” both in solution and in the solid state; this was revealed by NMR studies and an X-ray structure analysis, π-π interactions between aromatic subunits probably contribute to the stability of the tertiary structure of the Cu2-[3]-catenate (stacking arrangement).
