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首页> 外文期刊>Optical Materials >Structural and vibrational properties of microcrystalline TlM(MoO_4)_2 (M = Nd, Pr) molybdates
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Structural and vibrational properties of microcrystalline TlM(MoO_4)_2 (M = Nd, Pr) molybdates

机译:微晶TlM(MoO_4)_2(M = Nd,Pr)钼酸盐的结构和振动性质

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摘要

The microcrystalline TlNd(MoO_4)_2 and TlPr(MoO_4)_2 molybdates have been prepared with solid state synthesis on the same synthesis route. The final products have been studied by XRD and SEM. Vibrational properties have been evaluated with Raman spectroscopy. More than 20 narrow Raman lines have been observed in the experimental spectrum of the microcrystals. The most intensive lines related to breathing vibrations of MoO_4 tetrahedra have been found at 904 and ~930 cm~(-1). The earlier proposed empirical relation between Mo-O bond length and stretching mode wavenumber has been tested by the comparative analysis for a suite of sixteen complex molybdates. This well-known relation is found to be unusable for molybdates containing different cations in the crystal lattice.
机译:已经在相同的合成路线上通过固态合成制备了微晶的TlNd(MoO_4)_2和TlPr(MoO_4)_2钼酸盐。最终产品已通过XRD和SEM研究。振动特性已通过拉曼光谱法进行了评估。在微晶的实验光谱中已经观察到超过20条窄拉曼线。与MoO_4四面体的呼吸振动有关的最强烈的线在904和〜930 cm〜(-1)处被发现。通过对一组16种复杂钼酸盐进行比较分析,测试了Mo-O键长与拉伸模式波数之间较早提出的经验关系。发现这种公知的关系对于晶格中包含不同阳离子的钼酸盐是不可用的。

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  • 来源
    《Optical Materials》 |2012年第5期|p.812-816|共5页
  • 作者单位

    Laboratory of Optical Materials and Structures Institute of Semiconductor Physics SB RAS Novosibirsk 630090 Russia;

    Laboratory of Oxide Systems Baikal Institute of Nature Management SB RAS Ulan-Ude 670047 Russia;

    Laboratory of Condensed Matter Spectroscopy Institute of Automation and Electrometry SB RAS Novosibirsk 90 630090 Russia;

    Laboratory of Nanodiagnostics and Nanolithography Institute of Semiconductor Physics SB RAS Novosibirsk 90 630090 Russia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    solid state synthesis; microstructure; molybdate; raman spectroscopy;

    机译:固态合成微观结构钼酸盐拉曼光谱;

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