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Space filling representation of cubic-shaped cages formed by three pairs of parallel-oriented bipyridine ligands proceeding from three adjacent [ZnII(bpy)3]2+ template cations: (a) view of the empty space of the cubic cage in Compound 1; (b) view of the cubic cage in Compound 2 where the water molecule is located. Part of the bipyridine ligand located at the top of the cage is omitted for clarity.
