Figure 1
The structure of (I), showing the atom numbering. Displacement ellipsoids are drawn at the 50% probability level. H atoms have been omitted for clarity. [Symmetry codes: (i) −x + 1, −y, −z + 2; (ii) x, y − 1, z + 1; (iii) −x + 1, −y + 1, −z + 1.] |