Figure 3
A packing diagram for (II), viewed down the c axis. Hydrogen bonds are indicated by dotted lines. Atoms marked with a dollar sign ($), hash (#) or asterisk (*) are at the symmetry positions (1 − x, 1 − y, 1 − z), (x, y − 1, 1 + z) and (2 − x, 1 − y, 1 − z), respectively. H atoms bonded to C atoms have been omitted for clarity. |