CRYSTAL-CHEMISTRY OF OXOMETALLATES OF COMPOSITION BA6ND2AL4O15 - NEW RESULTS WITH BA4.5CA1.5ND2FE4O15 AND BA5CASM2FE4O15

被引：11
|
作者：
RUTER, I
MULLERBUSCHBAUM, H
机构：
[1] Institut für Anorganische Chemie der Christian-Albrechts-Universität, D-2300 Kiel
来源：
JOURNAL OF THE LESS-COMMON METALS | 1990年 / 162卷 / 01期
关键词：
D O I：
10.1016/0022-5088(90)90472-V
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：
(I) Ba45Ca1.5Nd2Fe4O15 and (II) Ba5CaSm2Fe4O15 were prepared and investigated by a single-crystal X-ray technique. Both compounds crystallize in the space group C6v4-P63mc. (I): a = 11.6244; c = 6.9205 A ̊; (II): a = 11.655; c = 6.987 A ̊; Z = 2. The incorporation of Ca2+ into two of four possible point positions will be discussed. The incorporation of Sm3+ ions into the Ba6Nd2Al4O15 type requires the presence of Ca2+ on the point position occupied statistically by Ba2+ and Ln3+. © 1990.
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页码：175 / 180
页数：6
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