Figure 2
Part of the crystal structure of (II), showing the formation of a chain of edge-fused R22(16) rings along [100]. For the sake of clarity, H atoms not involved in the hydrogen-bonding motifs shown have been omitted. Atoms marked with an asterisk (*), hash (#) or ampersand (&) are at the symmetry positions (−½ + x, y, ½ − z), (½ − x, y, ½ − z) and (−1 + x, y, z), respectively. |