Figure 1
The molecular structure of (I), showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level. [Symmetry codes: (i) 1 + x, y, z; (ii) 2 − x, 1 − y, 1 − z; (iii) 1 − x, 1 − y, 1 − z; (iv) 1 − x, − + y, − z.] |