In some cases a phase transition occurs, e.g. at higher temperatures where the superstructure disappears and the material reverts back to the simpler substructure, or compounds are known that exhibit only the substructure.
In some cases a phase transition occurs, e.g. at higher temperatures, where the superstructure disappears and the material reverts back to the simpler substructure. If not, usually compounds are known that exhibit only the substructure.