有机分子激光喇曼光谱偏振特性的实验研究  

An experimental investigation on the polarization characteristics of laser Raman spectrum of organic molecule

作　　者：李宽国[1] 刘广菊[1] 张先燚[1] 季学韩[1] 崔执凤[1] 

机构地区：[1]安徽师范大学原子与分子物理研究所,安徽芜湖241000

出　　处：《应用激光》2006年第2期101-104,84,共5页Applied Laser

基　　金：教育部重点研究项目(2001KJ116ZD);安徽省教育厅自然科学基金;安徽省原子与分子物理重点学科建设基金资助

摘　　要：激光偏振喇曼光谱在确定分子振动模的对称性和红外光谱结构分析方面具有重要作用,本文报道了利用532nm激光从实验上测定了丙酮、甲醇、乙二醇和甲酰胺分子的激光偏振喇曼光谱,确定了各喇曼谱线对应的喇曼频移。测定了丙酮、甲醇、乙二醇和甲酰胺分子各喇曼频移对应的退偏比,并对各条谱线所属正则振动模的对称性进行了初步分析。The polarized laser Raman spectrum plays an important role in analyzing the symmetry of the normal vibration mode and the structure of 1R spectrum of molecule. In this paper the polarized laser Raman spectra of acetone , methanol,Ethylene glycol, formamide are measured and the Raman shift of each spectral line is obtained with the laser wavelength at 532nm. The depolarization ratio of every measured Raman shift and the symmetry of the corresponding mode are determined.

关 键 词：激光喇曼光谱 退偏比 丙酮 甲醇 乙二醇 甲酰胺 

分 类 号：TN253[电子电信—物理电子学] O621.22[理学—有机化学]