Synthesis, structural and vibrational properties of microcrystalline β-RbSm(MoO₄)

Synthesis, structural and vibrational properties of microcrystalline β-RbSm(MoO₄)

Low-temperature rubidium samarium dimolybdate, β-RbSm(MoO₄)₂, microplates have been prepared by solid state synthesis at 723K by 70h and 893K by 150h. The crystal structure of β-RbSm(MoO₄)₂ has been first refined by the Rietveld method in the space group Pbcn with unit cell parameters a=5.1431(2) Å,...

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Veröffentlicht in:Materials letters 2013-09, Vol.106, p.26-29
Hauptverfasser: Atuchin, V.V, Chimitova, O.D, Adichtchev, S.V, Bazarov, J.G, Gavrilova, T.A, Molokeev, M.S, Surovtsev, N.V, Bazarova, Zh.G
Format: Artikel
Sprache:eng
Schlagworte:
crystal structure
rubidium
samarium
vibrational properties
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Zusammenfassung:Low-temperature rubidium samarium dimolybdate, β-RbSm(MoO₄)₂, microplates have been prepared by solid state synthesis at 723K by 70h and 893K by 150h. The crystal structure of β-RbSm(MoO₄)₂ has been first refined by the Rietveld method in the space group Pbcn with unit cell parameters a=5.1431(2) Å, b=18.8195(7) Å, and c=8.1641(3) Å (RB=4.82%). The crystal structure of β-RbSm(MoO₄)₂ consists of the layers of MoO₄ tetrahedrons corner-sharing with SmO₈ square antiprisms. About 20 narrow Raman lines have been observed in Raman spectra recorded for the β-RbSm(MoO₄)₂ powder sample.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2013.04.039