Figure 5
Symmetry of the MDO1 and MDO2 polytypes of 5NICz viewed along b. Molecules are represented by bars which are red on one side and blue on the other. Darker colours indicate translation by b/2. λ-POs of the layers and σ-POs relating adjacent layers are indicated by the common graphical symbols (Hahn & Aroyo, 2016) and, in the case of unusual intrinsic translations, by their printed symbols. Symbols of POs that are valid for the whole polytype are red. The unit cell of the polytypes is marked by a grey backdrop. |