Figure 1.

(a) Synthesis of 1–3 and the conversion of 1 to 2 through subcomponent exchange. Side-on views of the crystal structures of 1 and 2 are shown. (b) View down the S₁₀ axis of the crystal structure of 1. (c) View down the C₅ axis of the crystal structure of 2. In the images of 1, the carbon atoms of the two interlocked [Cu^I₅L₂]⁵⁺ cages are colored differently, and only one of the two crystallographically unique assemblies is shown; in all cases hydrogen atoms, counterions, solvent molecules, and disorder have been omitted for clarity.