Figure 3
The arrangement of the molecules in the crystal structure of (I), viewed along the a axis. The hydrogen bonds are represented by dashed lines and π–π interactions by dotted lines. Cg1 and Cg2 denote the centroids of the C21–C26 and C51–C56 phenyl rings, respectively. [Symmetry codes as in Fig. 2; additionally: (v) x, y + 1, z; (vi) x, y − 1, z.] |