Crystal Structure of La3OBr[AsO3]2

被引：0

作者：

Ben Yahia, Hamdi ^{[1
]}

Rodewald, Ute Ch. ^{[1
]}

Poettgen, Rainer ^{[1
]}

机构：

[1] Univ Munster, Inst Anorgan & Analyt Chem, D-48149 Munster, Germany

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 2010年 / 65卷 / 10期

关键词：

Oxoarsenite; Rare Earth Compound; Crystal Structure; BOND-VALENCE PARAMETERS;

D O I：

暂无

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Colorless needles of the arsenite bromide La3OBr[AsO3](2) were synthesized from ammonium dihydrogen arsenate, ammonium bromide and lanthanum oxide in an NaBr/KBr flux at 900 degrees C. La3OBr[AsO3](2) crystallizes with the centrosymmetric tetragonal La3OCl[AsO3](2) type, space group P4(2)/mnm. The structure was refined from single-crystal diffractometer data: a = 13.0431(15), c = 5.6127(7) angstrom, wR2 = 0.0454, 945 F-2 values, and 39 variables. It consists of chains of trans-edge-sharing OLa4/2 tetrahedra which are coordinated by [AsO3](3-) units via the oxygen atoms.

引用

页码：1289 / 1292

页数：4

共 50 条

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