Two new glaserite-type orthovanadates: Rb2 KDy(VO4 )2 and Cs1.52 K1.48 Gd(VO4 )2

Acta Crystallographica. Section E, Crystallographic Communications
Lotfi RghiouiMohamed Saadi

Abstract

The crystal structures of dirubidium potassium dysprosium bis-(vanadate), Rb2KDy(VO4)2, and caesium potassium gadolinium bis-(vanadate), Cs1.52K1.48Gd(VO4)2, were solved from single-crystal X-ray diffraction data. Both compounds, synthesized by the reactive flux method, crystallize in the space group Pm1 with the glaserite structure type. VO4 tetra-hedra are linked to DyO6 or GdO6 octa-hedra 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.

References

Jan 1, 1973·Scientific American·G Teleki
Jul 3, 2002·Acta Crystallographica. Section C, Crystal Structure Communications·Lotfi RghiouiJean Pierre Wignacourt
Feb 7, 2012·Chemical Science·Scott P SimonovichDavid W C Macmillan
Dec 30, 2014·Acta Crystallographica. Section A, Foundations and Advances·George M Sheldrick
Jan 9, 2015·Acta Crystallographica. Section C, Structural Chemistry·George M Sheldrick
Jun 20, 2015·Journal of Applied Crystallography·Lennard KrauseDietmar Stalke
Aug 4, 2016·Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials·Olivier Charles Gagné, Frank Christopher Hawthorne

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Citations

Jul 23, 2020·Acta Crystallographica. Section E, Crystallographic Communications·Fatima-Zahra CherifLahcen El Ammari

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Methods Mentioned

BETA
X-ray
thermal treatment

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