Figure 6
The molecular packing in (III): (a) plan and (b) views of the double-layer sustained by charge-assisted ammonium-N3—H⋯O(carboxylate), ammonium-N3—H⋯O(hydroxy) (blue dashed lines) and hydroxy-O—H⋯O(carboxylate) (orange dashed lines) hydrogen bonds, and views of the unit-cell contents in projection down the (c) c axis and (d) b axis. In (c) and (d), the intramolecular amine-N—H⋯O(carboxylate) and amine-N—H⋯O(nitro) interactions are represented by pink and brown dashed lines, respectively. In each of (a)–(d), non-participating H atoms are omitted. |