Skip to main content
. 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 14. Acyclic oligourea-based anion receptors and their anionic dimer complexes.

Figure 14

(A) Molecular structures of receptors 29–32.

(B) Single crystal X-ray structure of the complex [Cl2]2− ⊂ 30.

(C) Single crystal X-ray structure of the complex [Cl2]2− ⊂ 31.

(D) Single crystal X-ray structure of the complex [Cl2]2− ⊂ 32.

All anions encapsulated within the cavities are shown in space-filling form. Inter-halide distances: (B) 3.62 Å, (C) 3.83 Å and (D) 4.03 Å. Color code: C = gray, N = blue, O = red, Cl = green. The counter cations and solvent molecules outside the cavities are omitted for clarity.