Crystal structure of Ca2Ln3Sb3O14 (Ln = La, Pr, Nd and Y): A novel variant of weberite

被引：20

作者：

Au, Y. S. ^{[1
]}

Fu, W. T. ^{[1
]}

Ijdo, D. J. W. ^{[1
]}

机构：

[1] Leiden Univ, Leiden Inst Chem, Gorlaeus Labs, NL-2300 RA Leiden, Netherlands

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2007年 / 180卷 / 11期

关键词：

Weberites; X-ray powder diffraction; Neutron powder diffraction; Crystal structure;

D O I：

10.1016/j.jssc.2007.09.013

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The crystal structures of Ca(2)Ln(3)Sb(3)O(14) (Ln = La, Pr, Nd and Y) and Ca2Sb2O7 at room temperature were refined by the Rietveld method using combined X-ray and neutron powder diffraction data. Ca2Sb2O7 adopts the weberite structure having the space group Imma. The structures of Ca(2)Ln(3)Sb(3)O(14) are, however, neither the orthorhombic nor the tetragonal chiolite as has been suggested previously. They crystallize in the monoclinic space group I2/m11 belonging to a hitherto unknown type of deformation of the parent (orthorhombic) weberite structure. (C) 2007 Published by Elsevier Inc.

引用

页码：3166 / 3171

页数：6

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