| 光谱学与光谱分析 |
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| The Study of Raman Spectra for Ethanol under the Pressures of 0.1-900 MPa at 24 ℃ |
| YANG Jing-feng1, ZHENG Hai-fei1, LI Wen-xia2 |
1.School of Earth and Space Science, Peking University, Beijing 100871, China
2.School of Mathematical Science, Peking University, Beijing 100871, China |
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Abstract Experimental measurement and study of Raman spectra for pure ethanol and 50% ethanol aqueous solution has been conducted at ambient temperature and the pressures of 0.1-900 MPa by using Cubic Zirconia anvil cell.The result shows that the frequency of C—H stretch vibration increases with increasing pressure and each of their relation between the frequency and pressure can be expressed as following: for pure ethanol： ν1=2 881.890+0.001 27 P+6.213×10-6 P2;ν2=2 928.707+0.004 38 P+4.772×10-6 P2;ν3=2973.457+0.008 89 P+3.245×10-6 P2;for 50% ethanol aqueous solution： ν1 =2 885.616+0.010 8 P-2.699×10-6 P2;ν2 =2 932.734+0.013 7 P-3.346×10-6 P2;ν3 =2 978.115+0.016 5 P-4.914×10-6 P2.Furthermore, the authors have observed that at the pressure lower than 550 MPa, the strength of hydrogen bonding becomes stronger with increasing pressure.
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Received: 2004-04-09
Accepted: 2004-08-28
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Corresponding Authors:
YANG Jing-feng
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| Cite this article: |
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YANG Jing-feng,ZHENG Hai-fei,LI Wen-xia. The Study of Raman Spectra for Ethanol under the Pressures of 0.1-900 MPa at 24 ℃[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(08): 1257-1261.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2005/V25/I08/1257 |
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