Sr4Fe6O12: Low-Temperature Fe2+-Fe3+ Charge Order within Pairs of Edge-Linked Tetrahedra

被引：1
|
作者：
Lu, Min Feng [1 ]
Waerenborgh, Joao C. [2 ]
Greaves, Colin [3 ]
机构：
[1] Chinese Acad Sci, State Key Lab Rare Earth Resource Utilizat, Changchun Inst Appl Chem, Changchun, Peoples R China
[2] Univ Tecn Lisboa, IST ITN, Inst Super Tecn, CFMC UL, P-2686953 Sacavem, Portugal
[3] Univ Birmingham, Sch Chem, Birmingham B15 2TT, W Midlands, England
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2013年 / 52卷 / 18期
基金：
中国国家自然科学基金;
关键词：
charge order; iron; layered compounds; neutron diffraction; solid-state structures; NEUTRON-DIFFRACTION; TRANSITION; OXIDES; SR4FE6O13+/-DELTA; HYDRIDE; ANION;
D O I：
10.1002/anie.201209473
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Mix and match: Topotactic hydride reduction allows the first synthesis of the fully reduced parent phase, Sr4Fe6O12, of the important family Sr4Fe6O13±δ. The structure provides a rare example of pairs of edge-linked tetrahedra, in this case containing a random arrangement of FeII and Fe III centers at 300 K. On cooling, charge order occurs so that each pair of tetrahedra has one FeII (white) and one FeIII (black) center. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：4833 / 4836
页数：4
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