Infrared and Raman spectra of lead fluorosilicate glasses
Infrared and Raman spectra of lead fluorosilicate glasses
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氟硅酸铅玻璃的红外光谱和拉曼光谱
DOI：
10.1016/0022-3093(91)90507-3
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
R. Magruder
中科院分区：
文献类型：
--
作者：
S. Morgan;D. Henderson;R. Magruder
报道了一系列氟硅酸铅玻璃的拉曼光谱（10-1200 cm-1）和红外光谱（90-2000 cm-1），这些玻璃的组成为（65-x）PbO-xPbF 2 - 35 SiO2，其中x = 0、10、15、20和25。在拉曼光谱中，靠近140 cm− 1处的Pb O带的强度随着PbF 2含量的增加而降低。在拉曼光谱中，在100 cm− 1附近出现了一个新的谱带，并且随着PbF 2的加入，谱带的强度增加。在远红外光谱中，随着PbF 2含量的增加，Si/O弯曲运动的谱带频率增加，谱带宽度减小。这些变化被解释为由PbF 2的存在下的硅酸盐结构的扰动的结果，并通过取代的氧原子在PbO 4金字塔单位的氟。
The Raman (10–1200 cm−1) and infrared (90–2000 cm−1) spectra are reported for a series of lead fluorosilicate glasses having the composition (65−x)PbO−xPbF2−35SiO2, wherex= 0, 10, 15, 20, and 25. The PbO band near 140 cm−1in the Raman spectrum decreases in intensity with increasing PbF2content. A new band appears in the Raman spectrum near 100 cm−1and increases in intensity as PbF2is added. In the far-infrared spectra, bands attributed to SiO bending motions increase in frequency and decrease in width with increasing PbF2content. These changes are explained as a result of the perturbation of the silicate structure by the presence of PbF2and by the substitution of a fluorine for an oxygen atom in the PbO4pyramidal units.