STRUCTURAL REFINEMENTS OF EULYTITE-TYPE CA3BI(PO4)3 AND BA3LA(PO4)3

被引：61
|
作者：
BARBIER, J
机构：
[1] Department of Chemistry, McMaster University, Hamilton
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 1992年 / 101卷 / 02期
基金：
加拿大自然科学与工程研究理事会;
关键词：
D O I：
10.1016/0022-4596(92)90181-T
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The room-temperature structures of the eulytite compounds Ca3Bi(PO4)3 and Ba3La(PO4)3 have been refined using powder neutron diffraction data. The metal atoms are disordered on a single site of the I43d space group, whereas the oxygen atoms are split between two sites, giving rise to rotational disorder of the phosphate anion similar to that previously observed in Sr3La(PO4)3. The degree of oxygen disorder depends on the nature of the metal atoms and, in particular, is reduced when Bi3+ ions are present in the eulytite structure. © 1992.
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收藏
页码：249 / 256
页数：8
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