(A) Molecular structure of receptor 9.
(B) Top view of the crystal structure of the complex [(NO3)6(H2O)2]6−⊂ [H39]3+2.
(C) Front view of the crystal structure of the complex [(NO3)6(H2O)2]6−⊂ [H39]3+2.
(D) Single crystal structure of the complex [Cl3]3−⊂ [H39]3+2.
All anions encapsulated in the cavity of the dimeric capsules are shown in space-filling form. Color code: C = gray, N = blue, O = red, and Cl = green. The counter anions and solvent molecules outside the cavities are omitted for clarity.