基于氢键的微观结构对表面张力影响的拉曼光谱研究

Investigation on the Influence of Microstructure Based on Hydrogen Bonding on Surface Tension by Raman Spectroscopy.

作者信息

Wu Nannan, Ouyang Shunli, Cui Junjie, Liu Shiliang, Zhang Mingzhe, Hu Qingcheng, Huang Baokun

机构信息

Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources, Inner Mongolia University of Science and Technology, Baotou 014010, China.

College of Science, Inner Mongolia University of Science and Technology, Baotou 014010, China.

出版信息

Int J Anal Chem. 2019 Dec 29;2019:7975237. doi: 10.1155/2019/7975237. eCollection 2019.

DOI:10.1155/2019/7975237

PMID:32089689

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7012242/

Abstract

Surface tension and Raman spectra containing hydrogen bonding in acetonitrile aqueous solutions with different mole ratios were obtained. Varied surface tension and hydrogen bonding in the mixed solution were discussed. For this purpose, the OH stretching bands were fitted into three Gaussian components to which different hydrogen-bonded water samples were assigned. Furthermore, the microstructures of binary solution were analyzed. The results indicated that the surface tension decreases dramatically with the enhancement of hydrogen bonds in the mixture. A spectroscopic method for studying the macroscopic properties of aqueous solutions was employed. The direct experiment results provided the relationship between surface tension and microstructure in aqueous solutions.

摘要

获得了不同摩尔比的乙腈水溶液中包含氢键的表面张力和拉曼光谱。讨论了混合溶液中变化的表面张力和氢键。为此，将OH伸缩带拟合为三个高斯分量，并为其分配了不同的氢键合水样本。此外，还分析了二元溶液的微观结构。结果表明，随着混合物中氢键的增强，表面张力急剧下降。采用了一种研究水溶液宏观性质的光谱方法。直接实验结果提供了水溶液中表面张力与微观结构之间的关系。