Hydrogen bonding in aqueous ethanol solutions studied by Raman spectroscopy

被引：3
|
作者：
Dolenko, Tatiana [1 ]
Burikov, Sergey [1 ]
Hojo, Masashi [2 ]
Patsaeva, Svetlana [1 ]
Yuzhakov, Victor [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Dept Phys, Leninskie Gory G-991, Moscow 119991, Russia
[2] Kochi Univ, Dept Sci, Kochi 7808520, Japan
来源：
LASER APPLICATIONS IN LIFE SCIENCES | 2010年 / 7376卷
关键词：
Raman scattering; valence vibrations; hydrogen bonds; clathrate-like structure; MULTIVARIATE CURVE RESOLUTION; WATER-ETHANOL; SPECTRA; MIXTURES; ALCOHOL;
D O I：
10.1117/12.871101
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
The results of Raman spectroscopy research of aqueous ethanol solutions with various mixing ratios are presented. The analysis of the behavior of Raman spectra with changes in ethanol concentration from 0 to pure ethanol is given. The analysis of contour of stretching OH-band provided information about changes in hydrogen bonding along with increases in ethanol concentration. Obtained results showed that the maximum strength of H-bonding in aqueous ethanol solution corresponded to an ethanol concentration of 15...20 % w/w. The observed strengthening of H-bonding strongly supports the hypothesis of clathrate-like structures. These results were supported by application of MCR-ALS method.
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页数：6
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