Two new glaserite-type orthovanadates: Rb2KDy(VO4)2 and Cs1.52K1.48Gd(VO4)2

被引：3

作者：

Rghioui, Lotfi ^{[1
]}

El Ammari, Lahcen ^{[2
]}

Assani, Abderrazzak ^{[2
]}

Saadi, Mohamed ^{[2
]}

机构：

[1] Mohammed V Univ Rabat, Fac Sci, Lab Spect Modelisat Mol Mat Nanomat Eau & Environ, Ave Ibn Batouta,BP 1014, Rabat, Morocco

[2] Mohammed V Univ Rabat, Fac Sci, Ctr Sci Mat, Lab Chim Appl Mat, Ave Ibn Batouta,BP 1014, Rabat, Morocco

来源：

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS | 2019年 / 75卷

基金：

澳大利亚研究理事会;

关键词：

crystal structure; crystal growth; X-ray diffraction; Rb2KDy(VO4)(2); Cs1.52K1.48Gd(VO4)(2); orthovanadates; IR and Raman spectroscopy; RARE-EARTH ORTHOPHOSPHATES; BOND-LENGTH DISTRIBUTIONS; OPTICAL-PROPERTIES; PHOTOLUMINESCENCE PROPERTIES; ALKALI;

D O I：

10.1107/S2056989019008685

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

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 P (3) over bar m1 with the glaserite structure type. VO4 tetrahedra are linked to DyO6 or GdO6 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.

引用

页码：1041 / +

页数：17

共 31 条

[1]

[Anonymous], APEX2 SAINT PLUS

[2] Theoretical and experimental analysis of the vibration spectra of rare earth potassium phosphates [J].