Figure 3
The crystal structure of (I). Hydrogen bonds are drawn as dashed lines. For clarity, H atoms not involved in the motif shown have been omitted. Atoms marked with an asterisk (*), dollar sign ($) or ampersand (&) are at the symmetry positions (1 − x, 1 − y, 1 − z), (x, 1 + y, z) and (1 − x, 1 − y, −z), respectively. |