FeIVdisproportionation (2FeIV→FeIII+ FeV) in AFeO3(ACa, Sr) perovskite lattices studied by119Sn diamagnetic probe Mössbauer spectroscopy
- 1 January 1995
- journal article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 5 (4) , 553-556
- https://doi.org/10.1039/jm9950500553
Abstract
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.Keywords
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