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Beilstein J. Org. Chem. 2019, 15, 1795–1804, doi:10.3762/bjoc.15.173
Graphical Abstract
Figure 1: Structures and proton designations of hosts H1–5 and guests G1–4.
Scheme 1: Synthesis of hosts H3–5.
Figure 2: Partial 1H NMR spectra (400 MHz CDCl3/acetone-d6 1:2 (v/v), 298 K) of (a) free H1, (b) H1 with 1.0 ...
Figure 3: Partial 1H NMR spectra (400 MHz, CD2Cl2, 298 K) of (a) free H1, (b) H1 with 1.0 equiv G4, (c) free ...
Figure 4: Crystal structure of complex H1·G1. (a) Top view, (b) side view, and (c) packing viewed along c-axi...
Figure 5: Crystal structure of complex H5·G1. (a) Top view, (b) side view, and (c) packing viewed along the a-...
Figure 6: Calculated structures of the complexes at the B3LYP/6-31G level of theory. (a) Top view and (b) sid...
Figure 7: Schematic representation of the acid–base controlled complexation process and partial 1H NMR spectr...