Figure 4
A packing diagram of (II), showing the column structure formed via the π–π interactions (magenta dashed lines). H atoms not involved in the 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: (i) −x, −y + 1, −z + 1; (ii) −x + 1, −y + 1, −z + 1. |