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