Raman and infrared spectroscopic study of the anhydrous carbonate minerals shortite and barytocalcite
Raman and infrared spectroscopic study of the anhydrous carbonate minerals shortite and barytocalcite
复制标题
DOI：
10.1016/j.saa.2007.11.021
复制
发表时间：
2008-11-01
影响因子：
4.4
通讯作者：
Dickfos, Marilla J.
中科院分区：
文献类型：
--
作者：
Frost, Ray L.;Dickfos, Marilla J.
短铁矿和重方解石的拉曼光谱与红外光谱相结合已用于表征这些碳酸盐矿物的结构。重方解石的拉曼光谱在 1086 cm(-1) 处显示出归因于 (CO3)(2-) 对称拉伸模式的单个谱带，而短方解石则观察到两个谱带。对短石的两个谱带的观察证实了晶胞中存在多个晶体学上不同的碳酸盐单元的概念。在这些矿物的反对称拉伸和弯曲区域观察到多个带，证明碳酸盐单元在短铁矿和重方解石的结构中发生扭曲。 (C) 2007 Elsevier B.V. 保留所有权利。
The Raman spectra of shortite and barytocalcite complimented with infrared spectra have been used to characterise the structure of these carbonate minerals. The Raman spectrum of barytocalcite shows a single band at 1086 cm(-1) attributed to the (CO3)(2-) symmetric stretching mode, in contrast to shortite where two bands are observed. The observation of two bands for shortite confirms the concept of more than one crystallographically distinct carbonate unit in the unit cell. Multiple bands are observed for the antisymmetric stretching and bending region for these minerals proving that the carbonate unit is distorted in the structure of both shortite and barytocalcite. (C) 2007 Elsevier B.V. All rights reserved.