A REDETERMINATION OF THE CRYSTAL-STRUCTURE OF TRIMAGNESIUM PLATINUM, MG3PT

被引：20
作者：
RANGE, KJ
HAFNER, P
机构：
[1] Institut für Anorganische Chemie, Universität Regensburg, W-8400 Regensburg
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1992年 / 183卷
关键词：
D O I：
10.1016/0925-8388(92)90764-Z
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：
Single crystals of Mg3Pt have been obtained from the elements by high pressure-high temperature reaction in a modified Belt-type apparatus. The compound crystallizes hexagonally, space group P6(3)cm, with a = 7.9103(8) angstrom, c = 8.3223(16) angstrom, c/a = 1.0521 and Z = 6. The structure refinement (R = 0.027, R(w) = 0.022 for 264 absorption-corrected reflections) shows unequivocally that Mg3Pt is isostructural with Cu3P and that the structure models proposed by Ferro and Rambaldi (Na3As type, space group P6(3)/mmc) and Mansmann (anti-LaF3 type, space group P3c1BAR) are wrong.
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页码：430 / 437
页数：8
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