The vanadium oxide bronze η-NaxV2O5 (x = 1.286)

被引：13

作者：

Millet, P

Henry, JY

Galy, J

机构：

[1] CNRS, Ctr Elaborat Mat & Etud Struct, F-31055 Toulouse, France

[2] CEA, MDN, SPSMS, DRFMC, F-38054 Grenoble 9, France

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | 1999年 / 55卷

关键词：

D O I：

10.1107/S010827019801587X

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The vanadium oxide bronze eta-NaxV2 O-5 (X = 1.286) crystallizes in the monoclinic system with an original structure built up of layers formed by VO5 square pyramids and VO4 tetrahedra parallel to the (010) plane, with the Na atoms lying between these layers. To form the layer, the V atoms are distributed on seven different crystallographic sites: V1 and V2 are in oxygen tetrahedra connected in the layer rin their corners to V3, V4, V5, V6 and V7 in oxygen square pyramids which share corners and edges. The general formula of the layer, with vanadium exhibiting mixed V5+N4+ valency, is [V14O35](n)(9n)-, the electrical balance being assumed by 9n interleaved Na+ cations.

引用

页码：276 / 279

页数：4

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