TRIMAGNESIUM RHENIUM(I) HEPTAHYDRIDE, MG3REH7, CONTAINING OCTAHEDRAL [REH6]5- COMPLEX ANIONS

被引：19
作者：
HUANG, B
YVON, K
FISCHER, P
机构：
[1] UNIV GENEVA,CRISTALLOG LAB,24 QUAI E ANSERMET,CH-1211 GENEVA,SWITZERLAND
[2] ETH ZURICH,NEUTRONENSTREUUNG LAB,CH-5232 VILLIGEN,SWITZERLAND
[3] PAUL SCHERRER INST,CH-5232 VILLIGEN,SWITZERLAND
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1993年 / 197卷 / 01期
关键词：
D O I：
10.1016/0925-8388(93)90625-W
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：
Mg3ReH7 and its deuteride were synthesized by the reaction of magnesium and rhenium powders at 510-520-degrees-C and 120-155 bar hydrogen (deuterium) pressure and characterized by X-ray and neutron powder diffraction. They crystallize with hexagonal symmetry (space group P6(3)/mmc (No. 194); hydride: a = 4.8615(2) angstrom, c = 10.5937(5) angstrom; deuteride: a = 4.8539(2) angstrom, c = 10.5699(7) angstrom). The structure contains a nearly regular octahedral 18-electron [ReD6]5- complex anion with bond distances [Re-6D1] = 1.724(4) angstrom and a D - anion coordinated by five magnesium atoms in a trigonal bipyramidal configuration with bond distances [D2-2Mg1] = 1.901(4) angstrom and [D2-3Mg2] = 2.8024(1) angstrom.
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页码：97 / 99
页数：3
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