摘要
对GeS2Ga2S3KCl准三元系统玻璃3个系列样品的室温拉曼谱进行了系统的探测和分析。根据准二元系统GeS2KCl和Ga2S3KCl的熔融淬冷产物的观察和拉曼谱的分析,得出了在GeS2Ga2S3KCl系统玻璃中仅Ga2S3和KCl发生了化学反应并产生了新结构单元GaS32Cl的结论。根据系列Ⅰ和Ⅲ拉曼谱的演变证实了引入的K+离子是以氯原子为最近邻配位且仅形成单壳层结构。根据K+离子对结构单元GaS32Cl和亚结构单元Ga2S4Cl2影响的分析,成功地解释了GeS2Ga2S3KCl准三元系统玻璃中的拉曼谱演变。
Raman spectra of GeS2-Ga2S3-KCl pseudo-ternary system glasses at room temperature in the air were probed systematically in the region of 150-500 cm(-1). Based on the results of Raman spectra and preparing procedure in pseudo-binary systems GeS2-KCl and Ga2S3-KCl, the sole interaction of Ga2S3 and KCl was identified and new units GaS3/2Cl were produced in GeS2-Ga2S3-KCl glasses. That K+ ions in the form of Cl as the nearest coordination were homogeneously dispersed in the polymeric network was confirmed by the Raman spectra evolution of samples on the serials I and III. Raman spectral evolution of three composition serials can be successfully interpreted using a localized model considering the effect of K+ ions on the structural units GaS3/2Cl and Ga2S4Cl2.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2005年第1期44-47,共4页
Spectroscopy and Spectral Analysis
基金
国家杰出青年基金(50125205)资助项目
