ON THE CRYSTAL-CHEMICAL SIMILARITY OF AURIDE AND HALIDE ANIONS

被引：32

作者：

FELDMANN, C

JANSEN, M

机构：

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1995年 / 621卷 / 11期

关键词：

AURIDES; ANTI PEROVSKITES; ALKALI METAL HALIDE OXIDES; K3BRO; K3IO; K3AUO; RB3BRO; RB3IO; RB3AUO; CS3BRO; CS3IO; CS3AUO; CRYSTAL STRUCTURE;

D O I：

10.1002/zaac.19956211113

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The crystallographic properties of the aurides M(3)AuO and the alkalimetal halide oxides M(3)XO (M = K, Rb, Cs; X = Br, I) are compared. Rb3BrO, Rb3IO, Cs3BrO, and Cs3IO have been prepared and characterized for the first time: Rb3BrO (a = 5.465(1) Angstrom) crystallizes as a cubic anti perovskite, Cs3BrO (a = 7.800(6), c = 7.122(6) Angstrom) and Cs3IO (a = 8.056(3), c = 7.168(3) Angstrom) as hexagonal anti perovskites, Rb3IO (a = 7.889(1), c = 19.640(1) Angstrom) as a hexagonal anti BaTiO3 type. The analysis of bond lengths, molar volumes and the systematic of the crystal structures leeds to the conclusion, that the crystallographic properties of auride- and bromide anions are similar. The radius of the Au- has been found to be 2.2 Angstrom (KZ 12).

引用

页码：1907 / 1912

页数：6

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