Figure 1
The molecular structure of a half of the title compound with displacement ellipsoids drawn at the 50% probability level. The strong O—H⋯N and weak C—H⋯O/N/C hydrogen bonds are shown with the nearest neighbours. Symmetry codes: (i) 1 − x, 1 + y, − z; (ii) − + x, + y, − z; (iii) − x, − + y, z; (iv) + x, + y, − z. |