Figure 1

Schematic representations of: (a) CdCl2-type and (b) CdI2-type crystal structures of MgCl2. Blue and green spheres indicate Mg and Cl anions respectively.
Schematic representations of: (a) CdCl2-type and (b) CdI2-type crystal structures of MgCl2. Blue and green spheres indicate Mg and Cl anions respectively.