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. Author manuscript; available in PMC: 2019 Jan 11.
Published in final edited form as: Chem. 2017 Dec 14;4(1):46–93. doi: 10.1016/j.chempr.2017.10.015

Figure 4. The arene-based tripodal receptor 9 and its anionic complexes.

Figure 4

(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.