Figure 1
The structure of Ca2CuTe4O10Cl2 is composed of layers formed by CuO4Cl2 octahedra, and Te1O4E and Te2O3+1E trigonal bipyramids that are connected by the Ca atoms (medium grey). Colour key: O atoms are white, Cl atoms are dark grey and the positions of the 5s2 lone pairs (E) on the Te atoms are marked as black spheres. The lone pairs and the Cl atoms are located in channels in the structure. |