| 结合除谱,差谱,二阶差谱的二氯化铜水溶液中直接接触离子对的紫外可见吸收光谱研究 |
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| 引用本文： | 鞠思文,张宁,王志强,张睿挺,曾德文,邵晓鹏,林珂.结合除谱,差谱,二阶差谱的二氯化铜水溶液中直接接触离子对的紫外可见吸收光谱研究[J].化学物理学报,2017,30(6):657-663. |
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| 作者姓名： | 鞠思文 张宁 王志强 张睿挺 曾德文 邵晓鹏 林珂 |
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| 作者单位： | 西安电子科技大学, 物理与光电工程学院, 西安 710071,中南林业科技大学理学院, 长沙 410004,西安电子科技大学, 物理与光电工程学院, 西安 710071,西安电子科技大学, 物理与光电工程学院, 西安 710071,中南大学化学化工学院, 长沙 410083,西安电子科技大学, 物理与光电工程学院, 西安 710071,西安电子科技大学, 物理与光电工程学院, 西安 710071 |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China (No.21473171, No.21703164, and No.51134007), the National Basic Research Program of China (No.2014CB643401), the Fundamental Research Funds for the Central Universities (No.JB160508), and the Huashan Mountain Scholar Program and the 111 Project (No.B17035). |
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| 收稿时间： | 2017/11/14 0:00:00 |
| 修稿时间： | 2017/12/20 0:00:00 |
Contacted Ion Pairs in Aqueous CuCl2 by the Combination of Ratio Spectra, Difference Spectra, Second Order Difference Spectra in the UV-Visible Spectra |
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| Si-wen Ju,Ning Zhang,Zhi-qiang Wang,Rui-ting Zhang,De-wen Zeng,Xiao-peng Shao and Ke Lin.Contacted Ion Pairs in Aqueous CuCl2 by the Combination of Ratio Spectra, Difference Spectra, Second Order Difference Spectra in the UV-Visible Spectra[J].Chinese Journal of Chemical Physics,2017,30(6):657-663. |
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| Authors: | Si-wen Ju Ning Zhang Zhi-qiang Wang Rui-ting Zhang De-wen Zeng Xiao-peng Shao and Ke Lin |
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| Institution: | School of Physics and Optoelectronic Engineering, Xidian University, Xi''an 710071, China,College of Science, Central South University of Forestry and Technology, Changsha 410004, China,School of Physics and Optoelectronic Engineering, Xidian University, Xi''an 710071, China,School of Physics and Optoelectronic Engineering, Xidian University, Xi''an 710071, China,College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China,School of Physics and Optoelectronic Engineering, Xidian University, Xi''an 710071, China and School of Physics and Optoelectronic Engineering, Xidian University, Xi''an 710071, China |
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| Abstract: | The microstructure of aqueous CuCl2 has been studied through lots of technologies for many years; however, it remains a controversial subject. In this study, a new spectroscopic method has been proposed to analyze the UV-visible spectra of thin film of CuCl2/H2O solutions at different concentrations. This method is the combination of ratio spectra, difference spectra and second order difference spectra. By using this method, two new bands at ~230 and ~380 nm are obviously observed. The bands are assigned as the contacted ion pairsCuCl3(H2O)n]- orCuCl4(H2O)n]2-, which demonstrates that ion pairs exist in the CuCl2/H2O solution. Such finding agrees with the recent theoretical spectra obtained by time-dependent density functional theory. Furthermore, the populations of the contacted ion pairs are discussed. This study not only offers the direct spectroscopic evidence ofCuCl3(H2O)n]- orCuCl4(H2O)n]2- in aqueous CuCl2, but also suggests that the spectroscopic analysis method is powerful to extract the weak bands in a strong overlapping spectrum. |
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| Keywords: | UV-visible spectroscopy Ratio spectra Difference spectra CuCl2/H2O solution Ion pair |
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