Abstract
A new layered manganese oxide, Sr2MnGaO5, has been synthesised and Rietveld analysis of X-ray powder diffraction data has shown it to be an oxygen deficient perovskite with the brownmillerite structure: a = 5.5033(6) Å, b = 16.234(2) Å, c = 5.3717(6) Å. Incomplete order of the oxygen vacancies is best described using the space group Icmm. The oxygen content can readily be varied to form Sr2MnGaO5+δ (0≤δ≤0.5) to provide Mn oxidation states between Mn(III) and Mn(IV).
| Original language | English |
|---|---|
| Pages (from-to) | 1324-1326 |
| Number of pages | 3 |
| Journal | Journal of Materials Chemistry |
| Volume | 11 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2001 |
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