常见氘代溶剂和杂质在氢谱中的峰复习课程.doc

《常见氘代溶剂和杂质在氢谱中的峰复习课程.doc》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、精品好文档，推荐学习交流常用氘代溶剂和杂质峰在1H谱中的化学位移测试核磁的样品一般要求比较纯，并且能够溶解在氘代试剂中，这样才能测得高分辨率的图谱。 为不干扰谱图，所用溶剂分子中的氢都应被氘取代，但难免有氢的残余（1%左右），这样就会产生溶剂峰；除了残存的质子峰外，溶剂中有时会有微量的H2O而产生水峰，而且这个H2O峰的位置也会因溶剂的不同而不同；另外，在样品（或制备过程）中，也难免会残留一些杂质，在图谱上就会有杂质峰，应注意识别。以下给出了一些常见溶剂峰和杂质峰的化学位移： 常用氘代溶剂和杂质峰在1H谱中的化学位移单位：ppm 溶

2、剂CDCl3(CD3)2CO(CD3)2SOC6D6CD3CNCD3OHD2O 溶剂峰7.262.052.497.161.943.314.80 水峰1.562.843.330.402.134.87— 乙酸2.101.961.911.551.961.992.08 丙酮2.172.092.091.552.082.152.22 乙腈2.102.052.071.551.962.032.06 苯7.367.367.377.157.377.33— 叔丁醇CH31.281.181.111.051.161.401.24 OH——4.191.552.18

3、—— 叔丁基甲醚CCH31.191.131.111.071.141.151.21OCH33.223.133.083.043.133.203.22 氯仿7.268.028.326.157.587.90— 环己烷1.431.431.401.401.441.45— 1,2-二氯甲烷3.733.873.902.903.813.78— 二氯甲烷5.305.635.764.275.445.49— 乙醚CH3(t)1.211.111.091.111.121.181.17CH2(q)3.483.413.383.263.423.493.56 二甲基甲酰胺

4、CH8.027.967.957.637.927.797.92 CH32.962.942.892.362.892.993.01 CH32.882.782.731.862.772.862.85 二甲基亚砜2.622.522.541.682.502.652.71 二氧杂环3.713.593.573.353.603.66仅供学习与交流，如有侵权请联系网站删除谢谢4精品好文档，推荐学习交流3.75 乙醇CH3(t)1.251.121.060.961.121.191.17 CH2(q)3.723.573.443.343.543.603.65 OH(

5、s)1.323.393.63—2.47—— 乙酸乙酯CH3CO2.051.971.991.651.972.012.07 OCH2(q)4.124.054.033.894.064.094.14 CH3(t)1.261.201.170.921.201.241.24 甲乙酮CH3CO2.142.072.071.582.062.122.19 CH2(q)2.462.452.431.812.432.503.18 CH3(t)1.060.960.910.850.961.011.26 乙二醇3.763.283.343.413.513.593.65 润

6、滑脂CH3(m)0.860.87—0.920.860.88— CH2(br)1.261.29—1.361.271.29— 正己烷CH3(t)0.880.880.860.890.890.90— CH2(m)1.261.281.251.241.281.29— 甲醇CH33.493.313.163.073.283.343.34 OH1.093.124.012.16—— 正戊烷CH3(t)0.880.880.860.870.890.90— CH2(m)1.271.271.271.231.291.29— 异丙醇CH3(d)1.221.101.04

7、0.951.091.501.17 CH4.043.903.783.673.873.924.02 硅脂0.070.13—0.290.080.10— 四氢呋喃CH21.851.791.761.401.801.871.88 CH2O3.763.633.603.573.643.713.74 甲苯仅供学习与交流，如有侵权请联系网站删除谢谢4精品好文档，推荐学习交流CH32.362.322.302.112.332.32— CH（o/p）7.177.207.187.027.307.16— CH（m）7.257.207.257.137.307.16—

8、三乙基胺CH31.030.960.930.960.961.050.99 CH22.532.452.432.402.452.582.57 石油醚0.5-1.50.6-1.9—————第一章总论经济法主体，区分