DIMORPHISM OF LA5SN3, CE5SN3 AND PR5SN3 COMPOUNDS

被引：31

作者：

FRANCESCHI, E

机构：

[1] Istituto di Chimica Fisica, Università di Genova

来源：

JOURNAL OF THE LESS-COMMON METALS | 1979年 / 66卷 / 02期

关键词：

D O I：

10.1016/0022-5088(79)90227-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A low temperature modification, having a tetragonal structure of the W5Si3 type, has been found for the compounds La5Sn3, Ce5Sn3 and Pr5Sn3, which at high temperature crystallize with the hexagonal Mn5Si3 type of structure. The low temperature form appears to be denser than the high temperature form. For all the known W5Si3-type M5X3 compounds, the shortest M-M distance in the cell shows a linear variation with the radius of the M atom. A comparison with the analogous trend shown by the compounds of the Mn5Si3 type is also discussed. © 1979.

引用

页码：175 / 181

页数：7

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