Figure 2
Part of the crystal structure of isomer (II), showing the atom-labelling scheme and the formation of an ordered chain of rings along [10]. Displacement ellipsoids are drawn at the 30% probability level. Atoms N1, N2 and C27 and their pendent H atoms have 0.5 occupancy, as do the H atoms bonded to atoms C11 and C12. Atoms marked with the suffixes a–e are at the symmetry positions (1 − x, 1 − y, 1 − z), (−x, 2 − y, 1 − z), (−1 + x, 1 + y, z), (−1 − x, 3 − y, 1 − z) and (−2 + x, 2 + y, z), respectively. For the sake of clarity, H atoms not involved in the motifs shown have been omitted, as has the unit-cell outline. |