Chemistry Discipline, Faculty of Science and Technology, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia.
Spectrochim Acta A Mol Biomol Spectrosc. 2011 Jan;78(1):494-6. doi: 10.1016/j.saa.2010.11.016. Epub 2010 Nov 23.
The Raman spectrum of atelestite Bi2O(OH)(AsO4), a hydroxy-arsenate mineral containing bismuth, has been studied in terms of spectra-structure relations. The studied spectrum is compared with the Raman spectrum of atelestite downloaded from the RRUFF database. The sharp intense band at 834 cm(-1) is assigned to the ν1 AsO4(3-) (A1) symmetric stretching mode and the three bands at 767, 782 and 802 cm(-1) to the ν3 AsO4(3-) antisymmetric stretching modes. The bands at 310, 324, 353, 370, 395, 450, 480 and 623 cm(-1) are assigned to the corresponding ν4 and ν2 bending modes and BiOBi (vibration of bridging oxygen) and BiO (vibration of non-bridging oxygen) stretching vibrations. Lattice modes are observed at 172, 199 and 218 cm(-1). A broad low intensity band at 3095 cm(-1) is attributed to the hydrogen bonded OH units in the atelestite structure. A weak band at 1082 cm(-1) is assigned to δ(BiOH) vibration.
对含有铋的羟基砷酸盐矿物atelestite Bi2O(OH)(AsO4)的拉曼光谱进行了研究，从光谱与结构关系方面进行了研究。所研究的光谱与从 RRUFF 数据库下载的 atelestite 的拉曼光谱进行了比较。834cm(-1)处的尖锐强带被分配给 ν1 AsO4(3-)（A1）对称伸缩模式，767、782 和 802cm(-1)处的三个带被分配给 ν3 AsO4(3-)反对称伸缩模式。310、324、353、370、395、450、480 和 623cm(-1)处的带被分配给相应的 ν4 和 ν2 弯曲模式以及 BiOBi（桥氧振动）和 BiO（非桥氧振动）伸缩振动。晶格模式在 172、199 和 218cm(-1)处观察到。3095cm(-1)处的宽低强度带归因于 atelestite 结构中的氢键 OH 单元。1082cm(-1)处的弱带被分配给 δ（BiOH）振动。
