Figure 12
Part of the crystal structure of (IV), showing the formation of a chain of edge-fused R33(10) rings along [010]. For the sake of clarity, H atoms bonded to C atoms have been omitted. Atoms marked with an asterisk (*), a hash (#), a dollar sign ($), an ampersand (&) or an `at' sign (@) are at the symmetry positions (1 − x, − + y, − z), (1 − x, − + y, − z), (x, −1 + y, z), (x, 1 + y, z) and (1 − x, − + y, − z), respectively. |