Figure 5
A packing diagram of (II), showing the hydrogen-bonded ladder structure along the a axis. The dashed lines indicate N—H⋯O and C—H⋯O hydrogen bonds. H atoms not involved in the hydrogen bonds have been omitted. [Symmetry codes: (i) x + 1, y, z; (ii) −x + 1, −y, −z + 1.] |