| 镁离子作用下乙醇溶液的红外光谱研究 |
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| 引用本文： | 吴晓静,陈兴莉.镁离子作用下乙醇溶液的红外光谱研究[J].化学通报,2009,72(6). |
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| 作者姓名： | 吴晓静 陈兴莉 |
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| 作者单位： | 合肥工业大学化工学院,合肥,230009
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| 摘 要： | 采用红外光谱法对MgCl2乙醇溶液进行了研究.乙醇分子的谱带变化表明,Mg<'2+>与乙醇分子中C-O发生强烈作用,同时,随着MgCl2的加入,原有氢键结构遭到破坏,形成新的结构,计算得到其溶剂化数为3.87～1.83.针对溶液中各聚体氢键峰面积的变化进行了定量分析,确定了在0.3406～1.6083mol/kg浓度范围内二聚体含量与MgCl2浓度呈线性关系,其线性方程为△A=0.24202+16.65859 C;,相关系数R=0.9922,二聚体和多聚体呈可逆平衡关系,进一步揭示了溶液溶剂化的微观过程.
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| 关 键 词： | 红外光谱 乙醇 氯化镁 离子溶剂化 |
Study on the Infrared Spectra of Ethanol under Action of Mg~(2+) |
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| Wu Xiaojing,Chen Xingli.Study on the Infrared Spectra of Ethanol under Action of Mg~(2+)[J].Chemistry,2009,72(6). |
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| Authors: | Wu Xiaojing Chen Xingli |
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| Institution: | School of Chemical Engineering;Hefei University of Technology;Hefei 230009 |
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| Abstract: | The infrared spectra of ethanol solutions have been investigated by using infrared spectroscopy under the MgCl2 solvation. The changes of infrared spectra of the solution showed that Mg 2+ interact with ethanol,which reflects in the shifts of the ethanol C-O stretch. New hydrogen bond structures have formed due to the addition of MgCl2. Through the linear regression and qualitatively calculation on obtained spectra,the solvent numbers of Mg 2+ at different molar concentrations are between 3.87 and 1.83. Mor... |
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| Keywords: | Infrared spectroscopy Ethanol MgCl2 Ion solvation |
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