Synthesis and structure of Ln4Re6-xO19 (Ln=Ce, Pr, Nd) complex oxides

被引：8
|
作者：
Bramnik, KG [1 ]
Abakumov, AM [1 ]
Shpanchenko, RV [1 ]
Antipov, EV [1 ]
Van Tendeloo, G [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119899, Russia
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 278卷 / 1-2期
基金：
俄罗斯科学基金会;
关键词：
rare-earth elements; rhenium; oxides; Nd4Re5.5O19 crystal structure;
D O I：
10.1016/S0925-8388(98)00252-7
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：
Ln(4)Re(6)O(19) (Ln=Ce, Pr) and Nd4Re5.5O19 compounds have been synthesized for the first time in sealed evacuated silica tubes and characterized by X-ray powder diffraction, electron diffraction and EDX analysis. The crystal structure of Nd4Re5.5O19 (S.G. 123, Z=2, a=8.9396(4) Angstrom) has been refined from X-ray powder data. The influence of the Ln size on the stability of the Ln(4)Re(6)O(19) structure is discussed. (C) 1998 Published by Elsevier Science S.A. All rights reserved.
引用
收藏
页码：98 / 102
页数：5
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