STRUCTURE OF LAZRTA3O11, A CATA4O11 ISOTYPE

被引：6

作者：

GRINS, J

NYGREN, M

ZHENG, C

WEST, AR

机构：

[1] UNIV ABERDEEN,DEPT CHEM,ABERDEEN AB9 1FX,SCOTLAND

[2] BEIJING UNIV,DEPT CHEM,BEIJING 100871,PEOPLES R CHINA

来源：

MATERIALS RESEARCH BULLETIN | 1992年 / 27卷 / 02期

关键词：

OXIDES; LANTHANUM; ZIRCONIUM; TANTALUM;

D O I：

10.1016/0025-5408(92)90206-F

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The crystal structure of LaZrTa3O11 has been determined from CuKa1 powder diffractometer data and refined by the full-profile Rietveld technique to R(F) = 0.034. It is hexagonal, a = 6.2824(2), c = 12.4469(7) angstrom, space group P6(3)22, z = 2. It is isostructural with CaTa4O11 + Ta and Zr are statistically distributed over two sets of sites, one of which is surrounded by a fairly regular O6 octahedron octahedron and the other which is in an environment intermediate between octahedral and pentagonal bipyramidial.

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页码：141 / 145

页数：5

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