Figure 4
The dimeric primary synthon in (II), showing the extended hydrogen-bonding environment. H atoms not involved in significant close contacts have been omitted for clarity. π–π interactions are depicted using a dashed line between ring centroids. [Symmetry codes: (i) −x − 1, −y, −z; (ii) x + 1, y, z; (iii) −x + 1, −y + 1, −z + 1; (iv) x + 1, y + 1, z.] |