ALKALINE-EARTH TRANSITION-METAL ANTIMONIDES AT4SB12 (A=CA, SR, BA - T=FE, RU, OS) WITH LAFE4P12-STRUCTURE

被引：45

作者：

EVERS, CBH ^{[1
]}

BOONK, L ^{[1
]}

JEITSCHKO, W ^{[1
]}

机构：

[1] UNIV MUNSTER,INST ANORGAN CHEM,WILHELM KLEMM STR 8,D-48149 MUNSTER,GERMANY

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1994年 / 620卷 / 06期

关键词：

SYNTHESIS; CRYSTAL STRUCTURE; CAFE4SB12; SRRU4SB12; BARU4SB12; POLYANTIMONIDES;

D O I：

10.1002/zaac.19946200613

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The title compounds were prepared by reaction of CaSb2, SrSb2, or BaSb3 with the transition metals and antimony in sealed silica tubes. They crystallize with the cubic LaFe4P12-structure, which was refined from single-crystal X-ray data of CaFe4Sb12, SrRu4Sb12, and BaRu4Sb12 to residuals of R = 0.014, 0.016, and 0.014, respectively. The thermal parameters of the alkaline earth ions increase with decreasing ionic size. The Sb-Sb distances are greater in the iron compound than they are in the two ruthenium compounds. This is rationalized to be due to a larger portion of electrons in antibonding Sb-Sb states in the iron compound.

引用

页码：1028 / 1032

页数：5

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