FeIVdisproportionation (2FeIV→FeIII+ FeV) in AFeO3(ACa, Sr) perovskite lattices studied by119Sn diamagnetic probe Mössbauer spectroscopy

Autor:	S. Darracq, Gérard Demazeau, V.P. Gorkov, J. Etourneaua, Igor A. Presniakov, Léopold Fournès, Pavel B. Fabritchnyi, Konstantin V. Pokholok
Rok vydání:	1995
Předmět:	Steric effects Chemistry Inorganic chemistry Disproportionation General Chemistry Crystallography chemistry.chemical_compound Oxidation state Ternary compound Lattice (order) Mössbauer spectroscopy Materials Chemistry Diamagnetism Hyperfine structure
Zdroj:	J. Mater. Chem.. 5:553-556
ISSN:	1364-5501 0959-9428
Popis:	Using 119SnIV as a diamagnetic probe in the perovskite lattice of AFeO3 oxides (ACa, Sr), the Fe disproportionation (2FeIV⇄ FeIII+ FeV) is discussed. An electronic phenomenon previously described for CaFeO3 is detected in SrFeO3 due to the local breakdown of the electronic delocalisation. Steric interactions seem to be the predominant factor for explaining the oxidation state of iron in the SnIV environment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7d43d96daeb819f67af0089e39003f03 https://doi.org/10.1039/jm9950500553 Zobrazit plný text záznamu