Temperature Effect on the Hydrogen Bonding Behavior between DMSO and Water in Aqueous DMSO Solutions Studied by Raman Spectroscopy
OUYANG Shun-li1, 2, LI Zheng-qiang3, WU Nan-nan1, LI Zuo-wei1, SUN Cheng-lin1, FAN Li-mei1,4*
1. College of Physics, Jilin University, Changchun 130023, China 2. Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources，Inner Mongolia University of Science & Technology, Baotou 014010, China 3. Key Laboratory for Molecular Enzymology and Engineering, Ministry of Education, Jilin University, Changchun 130023, China 4. Second Hospital of Jilin University, Changchun 130041, China
Abstract：In the present paper, DMSO/H2O mixture with the ratio of volume 1∶1 was measured in the cooling process by Raman spectroscopy, and the Raman assignments was made to the DMSO molecular and water molecular. The results showed that the behavior between intra-molecular hydrogen bonds and inter-molecular hydrogen bonds of DMSO and water leads to the change in the Raman spectra of the SO stretching vibration of DMSO and the O—H stretching vibration of water. Further analysis showed that the hydrogen bond between DMSO and water was enhanced in the course of temperature decreasing process (27 to -30 ℃), and the intramolecular hydrogen bonds between water and water replaced the intermolecular hydrogen bonds of DMSO and water in the course of temperature decreasing process (-30 to -60 ℃). The research provides experimental basis for hydrogen bonding theory in aqueous solution.
欧阳顺利1, 2, 李正强3，吴楠楠1，里佐威1，孙成林1，范丽梅1,4* . 变温过程中二甲基亚砜与水之间氢键行为的拉曼光谱研究 [J]. 光谱学与光谱分析, 2013, 33(09): 2425-2428.
OUYANG Shun-li1, 2, LI Zheng-qiang3, WU Nan-nan1, LI Zuo-wei1, SUN Cheng-lin1, FAN Li-mei1,4* . Temperature Effect on the Hydrogen Bonding Behavior between DMSO and Water in Aqueous DMSO Solutions Studied by Raman Spectroscopy . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(09): 2425-2428.
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