Figure 6
A packing diagram of (III), showing the column structure formed via the π–π interactions (magenta dashed lines). H atoms not involved in the O—H⋯·N/O⋯H—N and C—H⋯O hydrogen bonds (green dashed lines) are omitted for clarity. Cg1, Cg2 and Cg3 are the centroids of the C1–C6, N2/C8–C11/C16 and C11–C16 rings, respectively. Symmetry codes: (iii) −x + 1, y + , −z + ; (iv) −x, y + , −z + . |