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镨铁石榴石(Pr(3)Fe(5)O(12)):同步辐射研究

Tripraseodymium penta-iron(III) dodeca-oxide, Pr(3)Fe(5)O(12): a synchrotron radiation study.

作者信息

Komori Takashi, Sakakura Terutoshi, Takenaka Yasuyuki, Tanaka Kiyoaki, Okuda Takashi

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2009 Oct 3;65(Pt 11):i73. doi: 10.1107/S1600536809038100.

DOI:10.1107/S1600536809038100
PMID:21578032
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2971448/
Abstract

The title compound, penta-iron tripraseodymium dodeca-oxide (PrIG), has an iron garnet structure. There are two Fe site symmetries. One of the Fe atoms is coordinated by six O atoms, forming a slightly distorted octa-hedron, and has site symmetry. The other Fe atom is coordinated by four O atoms, forming a slightly distorted tetra-hedron, and has site symmetry. FeO(6) octa-hedra and FeO(4) tetra-hedra are linked together by corners. The Pr atom is coordinated by eight O atoms, forming a distorted dodeca-hedron, and has 222 site symmetry. The O atoms occupy the general positions.

摘要

标题化合物五铁三镨十二氧化物(PrIG)具有铁石榴石结构。存在两种铁位点对称性。其中一个铁原子由六个氧原子配位,形成一个轻微扭曲的八面体,并具有位点对称性。另一个铁原子由四个氧原子配位,形成一个轻微扭曲的四面体,并具有位点对称性。FeO(6)八面体和FeO(4)四面体通过角相连。镨原子由八个氧原子配位,形成一个扭曲的十二面体,并具有222位点对称性。氧原子占据一般位置。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f92/2971448/f77e09750d74/e-65-00i73-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f92/2971448/d75776383cfc/e-65-00i73-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f92/2971448/f77e09750d74/e-65-00i73-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f92/2971448/d75776383cfc/e-65-00i73-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f92/2971448/f77e09750d74/e-65-00i73-fig2.jpg

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