Two new glaserite-type orthovanadates: Rb(2)KDy(VO(4))(2) and Cs(1.52)K(1.48)Gd(VO(4))(2)

The crystal structures of dirubidium potassium dysprosium bis­(vanadate), Rb(2)KDy(VO(4))(2), and caesium potassium gadolinium bis­(vanadate), Cs(1.52)K(1.48)Gd(VO(4))(2), were solved from single-crystal X-ray diffraction data. Both compounds, synthesized by the reactive flux method, crystallize in...

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Detalles Bibliográficos
Autores principales: Rghioui, Lotfi, El Ammari, Lahcen, Assani, Abderrazzak, Saadi, Mohamed
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2019
Materias:
Research Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6659331/
https://www.ncbi.nlm.nih.gov/pubmed/31392021
http://dx.doi.org/10.1107/S2056989019008685
Descripción
Sumario:The crystal structures of dirubidium potassium dysprosium bis­(vanadate), Rb(2)KDy(VO(4))(2), and caesium potassium gadolinium bis­(vanadate), Cs(1.52)K(1.48)Gd(VO(4))(2), were solved from single-crystal X-ray diffraction data. Both compounds, synthesized by the reactive flux method, crystallize in the space group P [Image: see text] m1 with the glaserite structure type. VO(4) tetra­hedra are linked to DyO(6) or GdO(6) octa­hedra by common vertices to form sheets stacking along the c axis. The large twelve-coordinate Cs(+) or Rb(+) cations are sandwiched between these layers in tunnels along the a and b axes, while the K(+) cations, surrounded by ten oxygen atoms, are localized in cavities.

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