Details

Autor(en) / Beteiligte

• Rghioui, Lotfi
• El Ammari, Lahcen
• Assani, Abderrazzak
• Saadi, Mohamed

Titel

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

Ist Teil von

• Acta crystallographica. Section E, Crystallographic communications, 2019-07, Vol.75 (Pt 7), p.1041-1045

Ort / Verlag

England

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The crystal structures of dirubidium potassium dysprosium bis-(vanadate), Rb KDy(VO ) , and caesium potassium gadolinium bis-(vanadate), Cs K Gd(VO ) , were solved from single-crystal X-ray diffraction data. Both compounds, synthesized by the reactive flux method, crystallize in the space group 1 with the glaserite structure type. VO tetra-hedra are linked to DyO or GdO octa-hedra by common vertices to form sheets stacking along the axis. The large twelve-coordinate Cs or Rb cations are sandwiched between these layers in tunnels along the and axes, while the K cations, surrounded by ten oxygen atoms, are localized in cavities.