（钇）斜闪叶石的拉曼光谱和红外光谱研究
Raman and infrared spectroscopic study of kamphaugite-(Y).
作者信息
Frost Ray L, López Andrés, Scholz Ricardo
机构信息
School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia.
School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2015 May 15;143:67-71. doi: 10.1016/j.saa.2015.02.017. Epub 2015 Feb 12.
We have studied the carbonate mineral kamphaugite-(Y)(CaY(CO3)2(OH)·H2O), a mineral which contains yttrium and specific rare earth elements. Chemical analysis shows the presence of Ca, Y and C. Back scattering SEM appears to indicate a single pure phase. The vibrational spectroscopy of kamphaugite-(Y) was obtained using a combination of Raman and infrared spectroscopy. Two distinct Raman bands observed at 1078 and 1088cm(-1) provide evidence for the non-equivalence of the carbonate anion in the kamphaugite-(Y) structure. Such a concept is supported by the number of bands assigned to the carbonate antisymmetric stretching mode. Multiple bands in the ν4 region offers further support for the non-equivalence of carbonate anions in the structure. Vibrational spectroscopy enables aspects of the structure of the mineral kamphaugite-(Y) to be assessed.
我们研究了碳酸盐矿物钇碳钙石（CaY(CO₃)₂(OH)·H₂O），该矿物含有钇和特定的稀土元素。化学分析表明存在钙、钇和碳。背散射扫描电子显微镜似乎显示为单一纯相。钇碳钙石的振动光谱是通过拉曼光谱和红外光谱相结合的方法获得的。在1078和1088cm⁻¹处观察到的两个不同的拉曼带为钇碳钙石结构中碳酸根阴离子的不等价性提供了证据。这一概念得到了归属于碳酸根反对称伸缩模式的谱带数量的支持。ν4区域的多个谱带进一步支持了结构中碳酸根阴离子的不等价性。振动光谱能够对钇碳钙石矿物的结构方面进行评估。
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