Figure 2
Part of the crystal structure of (I), showing the formation of a molecular ladder along [001]. Atoms marked with an asterisk (*), hash (#), dollar sign ($), ampersand (&) or `at' sign (@) are at the symmetry positions (x, y, 1 + z), (x, y, z − 1), (1 − x, 1 − y, −z), (1 − x, 1 − y, 1 − z) and (1 − x, 1 − y, 2 − z), respectively. |