THE POTASSIUM NIOBYL CYCLOTETRASILICATE K2(NBO)2SI4O12

被引：35

作者：

CROSNIER, MP ^{[1
]}

GUYOMARD, D ^{[1
]}

VERBAERE, A ^{[1
]}

PIFFARD, Y ^{[1
]}

TOURNOUX, M ^{[1
]}

机构：

[1] UNIV NANTES,INST MAT NANTES,CHIM SOLIDES LAB,UMR 110,2 RUE HOUSSINIERE,F-44072 NANTES 03,FRANCE

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1992年 / 98卷 / 01期

关键词：

D O I：

10.1016/0022-4596(92)90077-9

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The single-phase compound K2(NbO)2Si4O12 was prepared by solid-state reaction. It crystallizes in the tetragonal system, space group P4bm with a = 8.7404(8)Å and c = 8.136(1)Å, Z = 2. The structure was determined from 484 reflections collected with a Nonius CAD4 diffractometer with MoKα radiation. The final R index and weighted Rw index are 0.021 and 0.022, respectively. This framework structure is built up from chains of corner-shared NbO6 octahedra running parallel to the four-fold axes and linked together by four-membered Si4O12 single rings. This structure is very similar to that of K4(ScOH)2 Si4O12. © 1992.

引用

页码：128 / 132

页数：5

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