CRYSTAL-STRUCTURE OF A NEW LANTHANUM-BISMUTH OXYHYDROXIDE - LA0.26BI0.74OOH

被引：16

作者：

KUMADA, N ^{[1
]}

KINOMURA, N ^{[1
]}

KODIALAM, S ^{[1
]}

SLEIGHT, AW ^{[1
]}

机构：

[1] OREGON STATE UNIV,DEPT CHEM,CORVALLIS,OR 97331

来源：

MATERIALS RESEARCH BULLETIN | 1994年 / 29卷 / 05期

关键词：

BISMUTH; LANTHANUM; OXYHYDROXIDE;

D O I：

10.1016/0025-5408(94)90037-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new lanthanum bismuth oxyhydroxide, La0.26Bi0.74OOH was prepared by a low temperature hydrothermal reaction. The oxyhydroxide crystallized in the orthorhombic system with the lattice parameters a = 3.808(1), b = 3.811(1) and c = 8.600(3) angstrom, space group Pmm2, and Z = 2. The crystal structure was determined by single crystal X-ray analysis with the final R factors being R = 0.046 and Rw = 0.057 for 240 unique reflections. The structure may be regarded as the PbFCl structure type with the first example of complete substitution of OH on the Cl site. This is also the first complete structure determination of compound having a PbFCl structure which is distorted from the usual tetragonal symmetry.

引用

页码：497 / 503

页数：7

共 11 条

[1]

Bannister F. A., 1935, MINERAL MAG, V24, P49, DOI [10.1180/minmag.1935.024.149.01, DOI 10.1180/MINMAG.1935.024.149.01]

[2] BOND-VALENCE PARAMETERS OBTAINED FROM A SYSTEMATIC ANALYSIS OF THE INORGANIC CRYSTAL-STRUCTURE DATABASE [J].