Inorganic Materials

, Volume 50, Issue 1, pp 82–89 | Cite as

Mössbauer study of oxo derivatives of iron in the Fe2O3-Na2O2 system

  • D. A. PankratovEmail author


Various compositions of oxo derivatives of iron reacting with sodium peroxide have been studied by Mössbauer spectroscopy. We have examined several mathematical models of the measured spectra. The results obtained are inconsistent with hypotheses made previously that such conditions may lead to the formation of compounds of iron in oxidation states above (6+). We demonstrate that a large excess of an alkali peroxide leads, most likely, to the formation of at least two iron(V) derivatives in tetrahedral coordination. In their Mössbauer spectra, they have isomer shifts of −0.45 and −0.51 mm/s and unusually large quadrupole splittings: 1.32 and 1.94 mm/s (at room temperature).


Iron Atom Isomer Shift Quadrupole Splitting Iron Compound Sodium Ferrate 
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© Pleiades Publishing, Ltd. 2014

Authors and Affiliations

  1. 1.Moscow State UniversityMoscowRussia
  2. 2.Moscow State Pedagogical UniversityMoscowRussia

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