Synthesis and structure of Sr₂MnGaO₅, a new layered manganese oxide

Adrian Wright; Helen Palmer; Paul Anderson; Colin Greaves

doi:10.1039/b100358p

Synthesis and structure of Sr₂MnGaO₅, a new layered manganese oxide

Adrian Wright, Helen Palmer, Paul Anderson, Colin Greaves

Chemistry

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29 Citations (Scopus)

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)Angstrom, b = 16.234(2)Angstrom, c = 5.3717(6)Angstrom. Incomplete order of the oxygen vacancies is best described using the space group Icmm. The oxygen content can readily be varied to form Sr2MnGaO5 + delta (0 less than or equal to delta less than or equal to 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	https://doi.org/10.1039/b100358p
Publication status	Published - 1 Jan 2001

Keywords

Manganese oxide
Layered material

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10.1039/b100358p

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title = "Synthesis and structure of Sr₂MnGaO₅, a new layered manganese oxide",

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)Angstrom, b = 16.234(2)Angstrom, c = 5.3717(6)Angstrom. Incomplete order of the oxygen vacancies is best described using the space group Icmm. The oxygen content can readily be varied to form Sr2MnGaO5 + delta (0 less than or equal to delta less than or equal to 0.5) to provide Mn oxidation states between Mn(III) and Mn(IV).",

keywords = "Manganese oxide, Layered material",

author = "Adrian Wright and Helen Palmer and Paul Anderson and Colin Greaves",

year = "2001",

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doi = "10.1039/b100358p",

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journal = "Journal of Materials Chemistry",

publisher = "Royal Society of Chemistry",

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T1 - Synthesis and structure of Sr₂MnGaO₅, a new layered manganese oxide

AU - Wright, Adrian

AU - Palmer, Helen

AU - Anderson, Paul

AU - Greaves, Colin

PY - 2001/1/1

Y1 - 2001/1/1

N2 - 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)Angstrom, b = 16.234(2)Angstrom, c = 5.3717(6)Angstrom. Incomplete order of the oxygen vacancies is best described using the space group Icmm. The oxygen content can readily be varied to form Sr2MnGaO5 + delta (0 less than or equal to delta less than or equal to 0.5) to provide Mn oxidation states between Mn(III) and Mn(IV).

AB - 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)Angstrom, b = 16.234(2)Angstrom, c = 5.3717(6)Angstrom. Incomplete order of the oxygen vacancies is best described using the space group Icmm. The oxygen content can readily be varied to form Sr2MnGaO5 + delta (0 less than or equal to delta less than or equal to 0.5) to provide Mn oxidation states between Mn(III) and Mn(IV).

KW - Manganese oxide

KW - Layered material

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U2 - 10.1039/b100358p

DO - 10.1039/b100358p

M3 - Article

VL - 11

SP - 1324

EP - 1326

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

IS - 5

ER -

Synthesis and structure of Sr₂MnGaO₅, a new layered manganese oxide

Abstract

Keywords

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