Figure 3
A magnified view of the edge-sharing PbI6 octahedra in (I) and the hydrogen bonds (dashed lines). Atoms marked with an asterisk (*), a hash (#) or an ampersand (&) are at the symmetry positions (x, y, 1 + z), (1 − x, 1 − y, 1 + z) and (1 − x, 1 − y, z), respectively. |