Tetra­yttrium difluoride disilicate orthosilicate, Y(4)F(2)[Si(2)O(7)][SiO(4)]

In the crystal structure of Y(4)F(2)[Si(2)O(7)][SiO(4)], three fundamental building blocks are present, viz. anionic disilicate and orthosilicate units ([Si(2)O(7)](6−) and [SiO(4)](4−)) and cationic [F(2)Y(4)](10+) entities. The latter are built up by two [FY(3)](8+) triangles sharing a common edge...

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Detalles Bibliográficos
Autores principales: Schäfer, Marion C., Hartenbach, Ingo, Schleid, Thomas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2013
Materias:
Inorganic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3790338/
https://www.ncbi.nlm.nih.gov/pubmed/24098160
http://dx.doi.org/10.1107/S1600536813026391
Descripción
Sumario:In the crystal structure of Y(4)F(2)[Si(2)O(7)][SiO(4)], three fundamental building blocks are present, viz. anionic disilicate and orthosilicate units ([Si(2)O(7)](6−) and [SiO(4)](4−)) and cationic [F(2)Y(4)](10+) entities. The latter are built up by two [FY(3)](8+) triangles sharing a common edge. The four crystallographically independent Y(3+) cations display coordination numbers of eight for one and of seven for the other three cations, provided by oxide and fluoride anions. The overall arrangement of the building blocks can be considered as layer-like parallel to the ac plane.

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