Figure 2
Part of the crystal structure of (I), showing the formation of a (110) sheet containing four distinct centrosymmetric rings. For the sake of clarity, H atoms bonded to C atoms have been omitted. Atoms marked with an asterisk (*), hash (#), dollar sign ($) or ampersand (&) are at the symmetry positions (1 + x, y − 1, z), (1 − x, 1 − y, −z), (−x, 1 − y, 2 − z) and (x − 1, 1 + y, z), respectively. |