Figure 1
The principal building units in the structure of the title compound. Displacement ellipsoids are drawn at the 50% probability level. [Symmetry codes: (i) x, −y + , z − ; (ii) x, −y + , z + ; (iii) x + 1, y, z; (iv) −x + 1, −y + 1, −z + 1; (v) −x + 2, −y + 1, −z + 1; (vi) −x + 1, −y + 1, −z + 2; (vii) x, y, z + 1; (viii) x − 1, y, z; (ix) x − 1, −y + , z + .] |