| 不同溶剂中取代基对芳香胺红外吸收光谱的影响 |
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| 引用本文： | 谢孟峡,刘媛,邓志威.不同溶剂中取代基对芳香胺红外吸收光谱的影响[J].光谱学与光谱分析,2000,20(6):819-821. |
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| 作者姓名： | 谢孟峡 刘媛 邓志威 |
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| 作者单位： | 北京师范大学分析测试中心,北京,100875 |
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| 摘 要： | 对２１种芳香胺在不同极性的溶剂中测定了红外光谱，并对不同取代基对氨基的对称伸缩动和非对称伸缩振动吸收峰峰位的影响进行了讨论。甲基在不同极性的溶剂中表现不同的电子效应；甲氧基处于氨基的邻位的电子效应和处于间位时不同，氯和硝基取代基使氨基的两吸收峰均向蓝移，氨基取代基使氨基的两吸收峰向红移。
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| 关 键 词： | 芳香 红外吸收光谱 红移 蓝移 取代基 |
Influence of Substituents on IR Spectrum of Aromatic Amines in Different Solvents |
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| Mengxia XIE,Yuan LIU,Zhiwei DENG.Influence of Substituents on IR Spectrum of Aromatic Amines in Different Solvents[J].Spectroscopy and Spectral Analysis,2000,20(6):819-821. |
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| Authors: | Mengxia XIE Yuan LIU Zhiwei DENG |
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| Institution: | Analytical and Testing Center, Beijing Normal University, 100875 Beijing. |
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| Abstract: | The 21 aromatic amines in different solvents are studied by FTIR, and the influence of substituents on the vibrational absorption, symmetric stretching frequency(nu s) and anti-symmetric stretching frequency(nu as) is investigated. The substituent of methyl has different electrical effects in organic solvent with various polarities. The electric effects of methoxy in ortho-position differ from that in meso-position. The functional groups of chloro- and nitro-cause the nu as and nu s of amino group a hyposochromic shift, while substituent of-NH2 makes the nu as and nu s of amino group a bathochromic shift. |
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| Keywords: | Aromatic amines IR spectrum Hyposochromic and bathochromic shifts |
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