Аннотация
The crystallographic analysis of five compositionally similar structures shows that the R3 ¯ -symmetrical trigonal structure and two monoclinic (C2/c) structures with the ratio M:S = 3:2 that is the same for all three have identical cation sublattices and similar real configurations of atomic positions. Two structures with M:S = 9:8, with the orthorhombic symmetry (Pcan) and with its monoclinic distortion (P2 1 /c), have identical cation sublattices. In the first group of the structures the symmetry and pseudosymmetry are determined by the SO 4 template symmetry, namely, axis 3. In the second group the symmetry of cation frameworks and structures in general is partially formed by three mutually perpendicular axes 4 ¯ of the SO 4 tetrahedra.
Язык оригинала | английский |
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Страницы (с-по) | 602-608 |
Число страниц | 7 |
Журнал | Journal of Structural Chemistry |
Том | 60 |
Номер выпуска | 4 |
DOI | |
Состояние | Опубликовано - 1 апр 2019 |