Figure 2
A perspective view of four adjacent molecules of (I) joined by hydrogen bonds and π–π stacking interactions between the aromatic rings. For clarity, labels are given only once for the hydrogen-bond contacts. Hydrogen bonds and centroid–centroid π–π stacking separations are indicated by dashed lines. [Symmetry codes: (i) 1 − x, 1 − y, −z; (ii) x, −1 + y, z.] |