Synthesis, structural and vibrational properties of microcrystalline ¦Â-RbSm(MoO4)2
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- 作者：V.V. Atuchin ; O.D. Chimitova ; S.V. Adichtchev ; J.G. Bazarov ; T.A. Gavrilova ; M.S. Molokeev ; N.V. Surovtsev ; Zh.G. Bazarova
- 关键词：¦Â-RbSm(MoO4)2 ; Synthesis ; Crystal structure ; Raman spectroscopy
- 刊名：Materials Letters
- 出版年：2013
- 出版时间：1 September, 2013
- 年：2013
- 卷：106
- 期：Complete
- 页码：26-29
- 全文大小：1369 K
文摘
Low-temperature rubidium samarium dimolybdate, ¦Â-RbSm(MoO4)2, microplates have been prepared by solid state synthesis at 723 K by 70 h and 893 K by 150 h. The crystal structure of ¦Â-RbSm(MoO4)2 has been first refined by the Rietveld method in the space group Pbcn with unit cell parameters a=5.1431(2) ?, b=18.8195(7) ?, and c=8.1641(3) ? (RB=4.82 % ). The crystal structure of ¦Â-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 ¦Â-RbSm(MoO4)2 powder sample.