CRYSTAL-STRUCTURE OF KNASIF6

被引：14

作者：

FISCHER, J

KRAMER, V

机构：

[1] Kristallographisches Institut der Universität, D W-7800 Freiburg

来源：

MATERIALS RESEARCH BULLETIN | 1991年 / 26卷 / 09期

关键词：

POTASSIUM; SODIUM; HEXAFLUOROSILICATE;

D O I：

10.1016/0025-5408(91)90173-J

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crystal data of KNaSiF6 were obtained by means of X-ray diffraction. The compound crystallizes with space group Pnma and the lattice constants a = 9.3246(11), b = 5.4992(6), and c = 9.7892(13) angstrom. Its crystal structure was solved and refined to R = 0.046. SiF6 octahedra form layers parallel to (100), connected within these layers by Na-F bonds and between the layers by K-F as well as Na-F bonds. K shows a ninefold co-ordination, Na a tenfold co-ordination. Unexpectedly, KNaSiF6 shows only far structural relationships to the components K2SiF6 and Na2SiF6.

引用

页码：925 / 930

页数：6

共 9 条

[1]

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