Figure 2
(a) View of unit cell along the crystallographic a-axis. Dashed lines represent hydrogen bonding between molecules.
R22(14) rings are indicated with purple and green polygons; hydrogen bonds not lying on the indicated rings form the same class of ring with molecules not rendered in this diagram. (b) View approximately along the (001) axis, showing how molecules form π–π stacks. Some molecules have been removed for clarity. |