Figure 3
A hydrogen-bonded layer of molecules in (I). Displacement ellipsoids are drawn at the 20% probability level and H atoms involved in hydrogen bonds (dashed lines) are shown as small spheres of arbitrary radii. Selected atoms are labelled. [Symmetry codes: (i) 2 − x, y − , 2 − z; (ii) 1 − x, + y, 1 − z; (iii) x − 1, y, z − 1; (iv) 1 − x, y − , 1 − z; (v) x, y − 1, z.] |