HIGH-PRESSURE HIGH-TEMPERATURE SYNTHESIS AND CRYSTAL-STRUCTURE OF AL11AU6 AND ALAU

被引：16

作者：

BUCHLER, H ^{[1
]}

RANGE, KJ ^{[1
]}

机构：

[1] UNIV REGENSBURG,INST ANORGAN CHEM,UNIV STR 31,W-8400 REGENSBURG,GERMANY

来源：

JOURNAL OF THE LESS-COMMON METALS | 1990年 / 160卷 / 01期

关键词：

Aluminum Gold Alloys - Crystallization - Chemical Reactions - Coordination Reactions - Crystals - Structure;

D O I：

10.1016/0022-5088(90)90116-2

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：

The intermetallic phases Al11Au6 and AlAu have been synthesized from the elements by a high pressure-high temperature reaction in a modified Belt-type apparatus. Al11Au6, previously called Al2Au, crystallizes cubic, space group Fm3m, a = 5.9988(3) A ̊, Z = 2 3, in a CaF2-type structure with a partially occupied aluminium site (wR = 0.011, 55 independent reflections with I > σ(I)). AlAu crystallizes monoclinic, space group P21 m, with a = 6.3998(11) A ̊, b = 3.3286(4) A ̊, c = 6.3254(8) A ̊, β = 93.140(9)° and Z = 4 (wR = 0.057, 631 independent reflections with I > σ(I)). AlAu must be considered as a monoclinic distorted NiAs-type with increased coordination numbers of 8 and 9 for aluminium and gold respectively. © 1990.

引用

页码：143 / 152

页数：10

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