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. 2017 Sep 29;22(10):1640. doi: 10.3390/molecules22101640

Figure 1.

Figure 1

Molecular structures of the four types of supramolecular macrocycles: (a) CDs, n = 1–3; (b) calixarenes, n = 1–3; (c) CB[n]s, n = 5–8, 10, 13–15; (d) pillararenes, n = 1–11; and their cartoon depictions.