Figure 3
A view parallel to the crystallographic b-axis, with intramolecular and intermolecular hydrogen bonds shown as dotted red lines and the π–π interactions as dashed blue lines. The intermolecular hydrogen bonds link molecules into chains propagating along the crystallographic a-axis direction and the π–π interactions link the hydrogen-bonded chains into two-dimensional sheets in the crystallographic ac plane. Displacement ellipsoids are plotted at the 50% probability level. |