Figure 20
Part of the crystal structure of (7) showing the linking of the (100) sheets by the cations. For the sake of clarity, H atoms bonded to C are omitted. The atoms marked with an asterisk (*), hash (#) or dollar sign ($) are at the symmetry positions ( − x, y, + z), ( − x, y, − + z) and ( + x, 1 − y, z), respectively. |