Synthesis and crystal structure of the pyrovanadate Na2ZnV2O7

被引：12
|
作者：
Tyutyunnik, AP
Zubkov, VG
Surat, LL
Slobodin, BV
Svensson, G [1 ]
机构：
[1] Stockholm Univ, Dept Struct Chem, SE-10691 Stockholm, Sweden
[2] Russian Acad Sci, Inst Solid State Chem, Ural Branch, Ekaterinburg 620219, Russia
来源：
POWDER DIFFRACTION | 2005年 / 20卷 / 03期
关键词：
pyrovandates; complex vanadium oxides; X-ray powder diffraction; crystal structure; akermanite;
D O I：
10.1154/1.1924434
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The compound Na2ZnV2O7 with an akermanite-type structure has been synthesized. It has a tetragonal unit cell, a = 8.2711(4), c = 5.1132(2) angstrom, and crystallizes with P-42(1)m symmetry, Z=2. Its crystal structure has been refined from a combination of X-ray and neutron powder diffraction data. The structure contains layers of corner-sharing VO4 and ZnO4 tetrahedra, the former in pairs forming pyrovanadate V2O7 units. The sodium atoms are positioned between the layers, with a distorted antiprismatic coordination of oxygen atoms. (c) 2005 International Centre for Diffraction Data.
引用
收藏
页码：189 / 192
页数：4
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