Figure 3
An illustration of the [Pb5I18]n8− two-dimensional net. Atoms marked with an asterisk (*), ampersand (&), percentage sign (%) or `at' sign (@) are at the symmetry positions (−x, y, −z + ), (−x + 1, −y + 2, −z), (x, y − 1, z) and (x, y + 1, z), respectively. |