A vibrational spectroscopic study of the phosphate mineral churchite (REE)(PO(4))⋅2H(2)O.
A vibrational spectroscopic study of the phosphate mineral churchite (REE)(PO(4))⋅2H(2)O.
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磷酸盐矿物丘沸石 (REE)(PO(4))⋅2H(2)O 的振动光谱研究。
DOI：
10.1016/j.saa.2014.02.100
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
M. C. Filho
中科院分区：
文献类型：
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作者：
R. Frost;Andrés López;R. Scholz;Y. Xi;M. C. Filho
用振动光谱法研究了稀土矿物（REE）（PO 4）2 H2O。该矿物含有一系列稀土金属，包括钇，具体取决于位置。在984 cm− 1处有一个强烈的尖峰，归属于ν 1（PO 4 3-）对称伸缩模。在1067 cm− 1附近观察到的较低强度带归因于ν 3（PO 4 3-）反对称伸缩模。在497 cm− 1（ν 2）和565 cm− 1（ν 4）处观察到（PO 4 3-）弯曲模。在649和681 cm− 1处的拉曼谱带被指定为水的振动模式。振动光谱学使教会的结构方面被确定。
Vibrational spectroscopy has been used to study the rare earth mineral churchite of formula (REE)(PO 4)⋅ 2H 2 O. The mineral contains a range of rare earth metals including yttrium depending on the locality. The Raman spectra of churchite-(REE) are characterized by an intense sharp band at 984 cm− 1 assigned to the ν 1 (PO 4 3-) symmetric stretching mode. A lower intensity band observed at around 1067 cm− 1 is attributed to the ν 3 (PO 4 3-) antisymmetric stretching mode. The (PO 4 3-) bending modes are observed at 497 cm− 1 (ν 2) and 565 cm− 1 (ν 4). Raman bands at 649 and 681 cm− 1 are assigned to water librational modes. Vibrational spectroscopy enables aspects of the structure of churchite to be ascertained.