Crystal structure of a new cation-ordered fluorite-related phase: Bi2Te2WO10

被引：13

作者：

ChamparnaudMesjard, JC

Frit, B

Chagraoui, A

Tairi, A

机构：

[1] LAB MAT CERAM & TRAITEMENTS SURFACE,URA CNRS 320,F-87060 LIMOGES,FRANCE

[2] FAC SCI BEN MSIK,CHIM SOLIDE LAB,CASABLANCA,MOROCCO

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1996年 / 622卷 / 11期

关键词：

bismuth and tungsten oxotellurate; crystal structure; fluorite-related structure;

D O I：

10.1002/zaac.19966221116

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Bi2Te2WO10 crystallises in the monoclinic system (space group C2/c, Z = 4) with a = 12.4972(7) Angstrom, b = 5.6414(3) Angstrom, c = 12.2705(6) Angstrom and beta = 91.38(3)degrees. The structure has been solved by means of single crystal X-ray diffraction data analysis. The reliability factors are R1 = 0.030 and wR2 = 0.065 for 1258 structure factors and 70 parameters. The Bi2Te2WO10 crystal structure can be described as a regular stacking along the Ox axis of polyhedral layers with the stereochemically active lone pairs E of the Bi-III and Te-IV atoms all located between these layers. The cohesion of the three-dimensional network is therefore only ensured between succesive layers by weak Bi-O(5) bonds.

引用

页码：1907 / 1912

页数：6

共 16 条

[1]

CHAGRAOUI A, 1995, 5 EUR C SOL STAT C B, V39, P312

[2]

CHAMPARNAUDMESJARD JC, 1994, EUR J SOL STATE INOR, V31, P473

[3]

ELFARISSI M, 1987, THESIS U LIMOGES

[4]

GREAVES C, 1988, ACTA CRYSTALLOGR C, V44, P587