Incommensurate structures structural aspects

We now consider in more detail the consequences of the incommensurate/commensurate nature of a tunnel inclusion compound in terms of diffractionand structural properties, and then energetic aspects end vibrational properties are discussed. 

The opportunity for certain classes of solid inclusion compounds, such as the ID tunnel structures discussed in this article, to form structures that may be commensurate or incommensurate represents an intriguing aspect of these materials, both with regard to understanding the fundamental energetic reasons underlying commensurate... 

The structural study of aperiodic material is a field that is still evolving. Their detailed study at the atomic level will possibly deliver the origin of the mechanism leading to aperiodicity rather than periodicity. We can also expect to use the structural properties of incoinmensurabilities as a probe to improve our knowledge of the chemical and physical aspects of atomic interactions. In addition, we can also expect to discover and take advantage of some specific properties associated with the aperiodicities of crystalline material. A series of studies on the NMR and NQR properties of incommensurate crystals already revealed some specific characteristics of these systems. 

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