NaCa1.5(NbO)2O2(AsO4)2

被引：2
|
作者：
Ben Amor, R [1 ]
Zid, MF [1 ]
机构：
[1] Univ Tunis El Manar, Fac Sci, Lab Mat & Cristallog, Tunis 2092, Tunisia
来源：
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS | 2005年 / 61卷
关键词：
D O I：
10.1107/S1600536805031429
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The structure of the title compound, sodium calcium niobate oxide arsenate, NaCa1.5(NbO)(2)O-2(AsO4)(2), is built up from chains of NbO6 octahedra, parallel to the c axis, corner-sharing with AsO4. There are two types of AsO4 tetrahedron; one is connected to three different NbO6 octahedra, whereas the other is linked to two NbO6 octahedra only. The non-bonded O atoms point towards the inter-layer space where the sodium and calcium ions are located. A relationship between the structure of the title compound and the related Na3SbO(PO4)(2) (one-dimensional), Na2NbO2AsO4(two-dimensional) and NaVOAsO4 and SbOPO4 (three-dimensional) structures is discussed.
引用
收藏
页码：I228 / I230
页数：3
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