Raman spectroscopic study of the phosphate mineral churchite‐(Y) YPO4·2H2O
Raman spectroscopic study of the phosphate mineral churchite‐(Y) YPO4·2H2O
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磷酸盐矿物丘钙石-(Y)YPO4·2H2O的拉曼光谱研究
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
Silmarilly Bahfenne
中科院分区：
文献类型：
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作者：
R. Frost;J. Sejkora;E. Keeffe;J. Plášil;J. Čejka;Silmarilly Bahfenne
本文用拉曼光谱研究了稀土矿物（Y，REE）（PO_4）·2H_2O（其中稀土元素（REE）为稀土元素）。这种矿物含有钇，根据不同的地点，还含有一系列稀土金属。对采自捷克共和国Jachymov和Medvovidin的两个Churchite-（Y）矿物样品的拉曼光谱与从RRUFF数据库下载的Churchite-（Y）的拉曼光谱进行了比较。教会石-（Y）的拉曼光谱的特征是在975 cm−1处有一个强烈的尖锐带，归属于ν1（PO 43 −）对称伸缩模。在1065 cm−1附近观察到的较低强度带归因于ν3（PO 43 −）反对称伸缩模。在497 cm−1（ν2）和563 cm−1（ν4）处观察到（PO 43 −）弯曲模。发现四个不同产地的四个辉锡石-（Y）样品在谱带位置上存在一些细微的差异，这些差异可能是由于辉锡石-（Y）矿物的成分不同所致。版权所有© 2009约翰威利父子有限公司。
Raman spectroscopy has been used to study the rare-earth mineral churchite-(Y) of formula (Y,REE)(PO4) ·2H2O, where rare-earth element (REE) is a rare-earth element. The mineral contains yttrium and, depending on the locality, a range of rare-earth metals. The Raman spectra of two churchite-(Y) mineral samples from Jachymov and Medvědin in the Czech Republic were compared with the Raman spectra of churchite-(Y) downloaded from the RRUFF data base. The Raman spectra of churchite-(Y) are characterized by an intense sharp band at 975 cm−1 assigned to the ν1 (PO43−) symmetric stretching mode. A lower intensity band observed at around 1065 cm−1 is attributed to the ν3 (PO43−) antisymmetric stretching mode. The (PO43−) bending modes are observed at 497 cm−1 (ν2) and 563 cm−1 (ν4). Some small differences in the band positions between the four churchite-(Y) samples from four different localities were found. These differences may be ascribed to the different compositions of the churchite-(Y) minerals. Copyright © 2009 John Wiley & Sons, Ltd.