Crystal structure of Bi2W2O9, the n=2 member of the homologous series (Bi2O2)BVInO3n+1 of cation-deficient Aurivillius phases

被引：52

作者：

Champarnaud-Mesjard, JC

Frit, B

Watanabe, A

机构：

[1] CNRS, UMR 6638, Lab Sci Procedes Ceram & Traitements Surface, F-87060 Limoges, France

[2] Natl Inst Res Inorgan Mat, Ibaraki, Osaka 3050044, Japan

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1999年 / 9卷 / 06期

关键词：

D O I：

10.1039/a900992b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The crystal structure of Bi2W2O9 has been solved by single crystal X-ray diffraction data analysis and refined to R = 0.046 for 991 independent reflections. Bi2W2O9 crystallizes with orthorhombic symmetry, Pna2(1) space group, Z = 4, a = 5.440(1), b = 5.413(1), c = 23.740(5) Angstrom. The model previously proposed by Watanabe ct al., i. c. Bi2O2 layers interleaved with ReO3-like slabs of W2O7, has been confirmed. The distortion of the W2O7 octahedral network has been analysed and compared to that observed in homologous Aurivillius phases.

引用

页码：1319 / 1322

页数：4

共 21 条

[1]

AURIVILLIUS B, 1951, ARK KEMI, V2, P519

[2] NEW LAYERED STRUCTURE OF BI2W2O9 DETERMINED BY 1 MV HIGH-RESOLUTION ELECTRON-MICROSCOPY [J].