CRITERIA FOR STABILIZING A HIGH-SPIN D4 ELECTRONIC CONFIGURATION - APPLICATION TO THE SYNTHESIS AND THE MOSSBAUER CHARACTERIZATION OF HIGH-SPIN IRON (IV) IN OXIDES

被引：9

作者：

FOURNES, L

DEMAZEAU, G

ZHU, LM

CHEVREAU, N

POUCHARD, M

机构：

[1] Laboratoire de Chimie du Solide du CNRS, Talence Cedex, 33405, 351, cours de la Libération

来源：

HYPERFINE INTERACTIONS | 1990年 / 53卷 / 1-4期

关键词：

D O I：

10.1007/BF02101062

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

A Mössbauer study has been carried out on different oxides with the general formula (A, A′)2M0.50Fe0.50O4 (A=Ca, Sr, Ba: A′=La; M=Li, Mg, Zn, Ga, Ni). In all these phases with K2NiF4-type-derived structure the distortion of the (FeO6) octahedra is sufficient to stabilize a high spin state for iron (IV) {Mathematical expression}. An interpretation of the evolution of Mössbauer parameters is proposed, based on bond competition considerations. © 1990 J.C. Baltzer AG, Scientific Publishing Company.

引用

页码：335 / 338

页数：4

共 5 条

[1] DEMAZEAU G, 1983, REV CHIM MINER, V20, P155
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[5] CHARGE DISPROPORTIONATION IN CAFEO3 STUDIED WITH MOSSBAUER-EFFECT
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