| 甲醇的高压拉曼光谱研究 |
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| 引用本文： | 乔二伟,郑海飞,孙樯.甲醇的高压拉曼光谱研究[J].光谱学与光谱分析,2004,24(12):1584-1587. |
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| 作者姓名： | 乔二伟 郑海飞 孙樯 |
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| 作者单位： | 北京大学地球与空间科学学院,造山带与地壳演化教育部重点实验室,北京,100871 |
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| 基金项目： | 国家自然科学基金重大项目 (1 0 2 990 4 0 )，国家自然科学基金 (40 1 730 1 9)资助项目 |
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| 摘 要： | 研究了甲醇在温度301K、压力169．2～713．8MPa下的拉曼特征。其中νCH区伸缩振动随压力增大，拉曼位移向高频方向移动，说明C-H键键能在增大；而νOH区伸缩振动随压力增大，拉曼位移则向低频方向移动，表明氢键对O-H基团的影响大于压力效应。另外，O-H伸缩振动峰的相对面积随压力的增大而减小，说明对C-H键而言，O-H键总强度是减弱的。
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| 关 键 词： | 甲醇 温度 拉曼光谱分析法 干酪根 石油 激光发射功率 立方氧化锆压腔 |
| 文章编号： | 1000-0593(2004)12-1584-04 |
| 修稿时间： | 2003年9月22日 |
Raman Spectroscopic Studies on Methanol under High Pressure |
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| Er-wei Qiao,Hai-fei Zheng,Qiang Sun.Raman Spectroscopic Studies on Methanol under High Pressure[J].Spectroscopy and Spectral Analysis,2004,24(12):1584-1587. |
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| Authors: | Er-wei Qiao Hai-fei Zheng Qiang Sun |
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| Institution: | Key Laboratory of Orogenic Belts and Crustal Evolution, Ministry of Education, School of Earth and Space Science, Peking University, Beijing 100871, China. |
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| Abstract: | This paper studies Raman spectra of methanol atpressures from 169.2 MPa up to 713.8 MPa and at ambient temperature. The result shows that the spectral profile of stretching vibrational modes of CH and OH gradually changes and Raman shift moves to higher and lower frequency respectively with increasing pressure, which indicates that the energy of C-H bonding increases with pressure, and the influence of hydrogen bonding on O-H function group is greater than that of pressure. In addition, the relative peak area of O-H stretch band decreases with pressure, showing that the total intensity of O-H bonding is weaker compared with C-H bonding. |
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| Keywords: | Cubic zirconium oxide anvil cell Methanol High pressure Raman shift Hydrogen bonding |
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