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