Figure 1
The molecular structure of (I), showing the atom-labelling scheme. Displacement ellipsoids are drawn at the 50% probability level and H atoms are omitted for clarity. The inversion-related halves of molecules A and B are generated by symmetry operations (i) −x, −y + 2, −z + 1 and (ii) −x, −y + 2, −z + 2, respectively. |