| 光谱学与光谱分析 |
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| Solvent Effects on Raman Spectroscopy of 1,1,3,3-Tetramethylurea in Organic Solvents |
| ZHANG Liu-yang1, 2, LI Zuo-wei1*, LU Guo-hui1, GAO Shu-qin1, JIANG Yong-heng1 |
1. College of Physics, Jilin University, Changchun 130021, China
2. School of Applied Science, Harbin University of Science and Technology, Harbin 150080, China |
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Abstract Raman spectra of 1,1,3,3-tetramethylurea in 20 solvents were obtained to investigate the solute-solvent interactions and to correlate solvent properties such as the Kirkwood-Bauer-Magat (KBM)equation, the solvent acceptor number (AN)and the linear solvation energy relationships (LSER), respectively, with the Raman shifts of carbonyl group. There is little linear relation between dielectric constants and the Raman shift. These solvents were divided into two sections by the acceptor number. The two sections exhibit a good correlation with AN, respectively. These frequencies show a better correlation with LSER than the solvent AN. How the solvents interacts with the CO can be obtained from the regression coefficients.
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Received: 2008-02-02
Accepted: 2008-05-06
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Corresponding Authors:
LI Zuo-wei
E-mail: johnien@163.com
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