- 作者: 謝雲生; 梁乃崇
- 作者服務機構: 中央研究院物理研究所
- 中文摘要: 由四溴化錫晶體從低溫80K至熔點間不同溫度之拉曼光譜分析,在絕對溫度223度時並沒有預期之第二個相轉變,分子在伸縮範圍內之模式分裂,主要基於“位置”及“相關”場效應,同時同位素分裂並不明顯。
- 英文摘要: The Raman spectra of crystalline tin tetrabromide at various temperatures between 80K and the.melting point has been studied. There is no evidence of a second phase transition at 223K. In the stretch-ing mode region, site and factor-group effects determine the mode splittings and that compared with thosetetrachloride compounds (CCl4,SnCl4,TiCl4,GeCl4,SiCl4) isotopic splitting is not observed.
- 中文關鍵字: Raman spectra; crystalline structure; vibrational modes; solid SnBr4
- 英文關鍵字: --