CA4MG4FE3H22, A NEW QUATERNARY TRANSITION-METAL HYDRIDE CONTAINING OCTAHEDRAL [FEH6]4- COMPLEX ANIONS

被引：23

作者：

HUANG, B ^{[1
]}

YVON, K ^{[1
]}

FISCHER, P ^{[1
]}

机构：

[1] ETH ZURICH PSI,NEUTRONENSTREUUNG LAB,CH-5232 VILLIGEN,SWITZERLAND

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1992年 / 190卷 / 01期

关键词：

D O I：

10.1016/0925-8388(92)90175-9

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：

Ca4Mg4Fe3H22 and its deuteride were synthesized by reaction of binary CaMg with iron wire at 500-530-degrees-C and 100-155 bar hydrogen (deuterium) pressure. The cubic structure was established from X-ray single-crystal and neutron powder diffraction: space group P43mBAR, a = 6.7151(6) angstrom (hydride) and 6.7016(4) angstrom (deuteride) at 295 K. It contains three types of deuterium atoms: two surrounding iron octahedrally with bond distances [Fe-4D1] = 1.583(3) angstrom and [Fe-2D2] = 1.562(5) angstrom, and one situated in a tetrahedral hole formed by one magnesium and three calcium atoms with bond distances [Mg-D3] = 1.808(7) angstrom and [Ca-D3] = 2.388(9) angstrom.

引用

页码：65 / 68

页数：4

共 13 条

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