Figure 3
Part of the crystal structure of (I), showing the formation of a chain of π-stacked molecules along [001]. For the sake of clarity, all H atoms have been omitted. Atoms marked with an asterisk (*), a hash (#), a dollar sign ($) or an ampersand (&) are at the symmetry positions (x, −y + , z − ), (x, −y + , z + ), (x, y, z − 1) and (x, y, z + 1), respectively. |