fig1
Figure 1. (A) The chemical structure and design rules of 4PACz, 4BCzPA and AOCzPA; (B) A schematic diagram of the construction of hydrogen-bond networks in AOCzPA; (C) Two-dimensional 1H–1H NOESY NMR spectra of AOCzPA in DMSO-d6. This figure is quoted with permission from[21], Copyright Springer Nature. NMR: Nuclear magnetic resonance.
