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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 6. Acyclic tren-based tris(urea) anion receptors and their anionic complexes.

Figure 6

(A) Molecular structures of receptors 11 and 12.

(B) Single crystal X-ray structure of the complex [F2]2−112.

(C) Single crystal X-ray structure of the complex [(SO4)2(H2O)3]4−112.

(D) Single crystal X-ray structure of the complex [(H2PO4)2(HPO4)2]6−114.

(E) Single crystal X-ray structure of the complex [(H2PO4)2(H3PO4)2]2−114.

(F) Single crystal X-ray structure of the complex [(H2PO4)2]2−122.

All anions encapsulated in the cavities are shown in space-filling form. Color code: C = gray, N = blue, O = red, F = chartreuse yellow and S, P = yellow. For D and E, various colors (pink, blue or aqua) are used to represent different independent ligands. The counter cations and other solvent molecules outside the cavities are omitted for clarity.