Figure 2 Part of the crystal structures, showing the formation of dimers via N-H...O hydrogen bonds, and the aggregation of [R_{2}^{2}](10), [R_{4}^{2}](8) and [R_{5}^{3}](13) motifs [Symmetry codes: (i) -x + 1, -y + 1, -z + 1; (ii) x + 1, y, z]. For the sake of clarity, the water molecules in (I), and H atoms not involved in hydrogen bonding have been omitted. Only atoms involved in hydrogen bonding are labelled.  [article HTML]