Figure 8
Possible π–π interaction in 3 shown by thick dashes. Centroid–centroid distances, 3.74 Å. Angles between ring planes, 23°. Edge-to-face C—H⋯π interactions shown by thin dashes between H atoms and the π systems at the edge of each acceptor ring. Symmetry-equivalent molecules generated by + x, − y, 1 − z and + x, − y, 1 − z. |