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Beilstein J. Org. Chem. 2025, 21, 884–889, doi:10.3762/bjoc.21.72
Graphical Abstract
Scheme 1: Synthesis of ultracycles.
Figure 1: (a, b) Crystal structure of B4aH (hydrogen atoms are omitted for clarity), and (c) the stacking str...
Figure 2: (a) The structures of host and guests, (b) 1H NMR spectra (298 K, 400 MHz, CD3CN) of B4aH upon titr...
Figure 3: (a–c) DFT-optimized structure of the B4aH-C72− complex. The blue dotted lines represent hydrogen bo...