Pyrochlore-type tin niobate

被引：15

作者：

Cruz, LP

Savariault, JM

Rocha, J

机构：

[1] CNRS, Ctr Elaborat Mat & Etud Struct, F-31055 Toulouse 4, France

[2] Polytech Inst Viseu, Dept Environm, P-3510 Viseu, Portugal

[3] Univ Aveiro, Dept Chem, P-3810 Aveiro, Portugal

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 2001年 / 57卷 / 09期

关键词：

D O I：

10.1107/S0108270101010320

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A single crystal of Sn1.59Nb1.84O6.35 was grown at 1273 K from a mixture of sodium niobate and tin(II) chloride. The structure is of pyrochlore type A(2)B(2)O(7). The tin is partially oxidized to tin(IV) and competes with niobium for the occupation of site B. The stereoactivity of the Sn2+ lone pair induces displacement of tin towards the O atoms of the tunnel.

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页码：1001 / 1003

页数：3

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