Space groups were found where structural sublattices that are based on Wyckoff sets occur. The data about the compatibility of Delaunay types for lattices and sublattices are presented in detail for tetragonal system crystals, the structures of 19843 crystals are analyzed from a database for inorganic crystalline structures, and some examples are given. The results can be applied when studying the structures of complex crystalline compounds to find additional latent symmetry and predict the peculiarities of physical and phys icalchemical properties due to this latent symmetry.
61.43.Bn Structural modeling: serial-addition models, computer simulation
Department of Physics, Kemerovo State University, Kemerovo, 650043 Russia
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