Figure 1
The structure of Bi5O7Br as seen from [010]. Bi, Br and O atoms are symbolized by small black, large (red in the electronic version of the paper) and medium-sized (light blue) spheres. Atoms/bonds in the `background' have been drawn paler. {}[BiO]+ sheets (seen side-on) are emphasized. Secondary Bi—O bonds are not visualized. Symbols I, II, III and I′ denote groups of Bi—X bonds (see Comment). |