Figure 4
A type 1 chain (see Comment) in (II). Displacement ellipsoids are drawn at the 10% 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) − x, 1 − y, z − ; (iv) − x, 1 − y, z + .] |