Figure 7
Part of the crystal structure of (III), showing the formation of the three-dimensional network (left) built from N1⋯O1, N2⋯O4(x − 1, y + 1, z) and O2⋯O3 hydrogen bonds, and the one-dimensional water chain (right). Hydrogen bonds are shown as dashed lines. For the sake of clarity, H atoms bonded to C atoms and the disordered water H atoms have been omitted. [Symmetry codes: (ii) −x + 2, −y + 2, −z; (iii) −x + 1, −y + 2, −z.] |