核磁共振1H化学位移图表

1、-作者xxxx-日期xxxx核磁共振1H化学位移图表【精品文档】核磁共振1H化学位移图表质子类型化学位移值烷烃质子(1) -C-C-H d0.91.5 ppmd ppmd (2) -C=C-CH -CC-CH (3)与N、S、C=O、-Ar相连 d2.02.5 ppm(4)与O、卤素相连 d34 ppm烯烃质子d4.58.0 ppm利用1H-NMR可有效确定双键的取代及构型。dH=5.28+Zgem+Zcis+Ztrans炔烃质子不特征， d1.83.0 ppm ，与烷烃重叠，应结合IR解析。芳烃质子1H-NMR信息非常特征 d6.58.0 ppm，未取代芳环d7.26 ppm，呈现单峰其它质

2、子醛基 -CO-H dd ppm羟基 R-OH d0.51.0ppm （稀溶液） d4 5.5 ppm （浓溶液） Ar-OH d3.57.7 ppm d1016 ppm（分子内氢键） -COOH d10.513 ppm杂质峰种类：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

3、。常用氘代溶剂和杂质峰在1H谱中的化学位移单位：ppm溶剂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CH31.281.181.111.051.161.401.24OH4.191.552.18叔丁基甲醚CCH31.19

4、1.131.111.071.141.151.21OCH33.223.133.083.043.133.203.22氯仿7.268.028.326.157.587.90环己烷1.431.431.401.401.441.451,2-二氯乙烷3.733.873.902.903.813.78二氯甲烷5.305.635.764.275.445.49乙醚CH3(t)1.211.111.091.111.121.181.17二甲基甲酰胺CH8.027.967.957.637.927.797.92CH32.962.942.892.362.892.993.01CH32.882.782.731.862.772.862

5、.85二甲基亚砜2.622.522.541.682.502.652.71二氧杂环3.713.593.573.353.603.663.75乙醇CH3(t)1.251.121.060.961.121.191.17CH2(q)3.723.573.443.343.543.603.65OH(s)1.323.393.632.47乙酸乙酯CH3CO2.051.971.991.651.972.012.07OCH2(q)4.124.054.033.894.064.094.14CH3(t)1.261.201.170.921.201.241.24甲乙酮CH3CO2.142.072.071.582.062.122.1

6、9CH2(q)2.462.452.431.812.432.503.18CH3(t)1.060.960.910.850.961.011.26乙二醇3.763.283.343.413.513.593.65润滑脂CH3(m)0.860.870.920.860.88CH2(br)1.261.291.361.271.29正己烷CH3(t)0.880.880.860.890.890.90CH2(m)1.261.281.251.241.281.29甲醇CH33.493.313.163.073.283.343.34OH1.093.124.012.16正戊烷CH3(t)0.880.880.860.870.890.90CH2(m)1.271.271.271.231.291.29异丙醇CH3(d)1.221.101.040.951.091.501.17CH4.043.903.783.673.873.924.02硅脂0.070.130.290.080.10四氢呋喃CH21.851.791.761.401.801.871.88CH2O3.763.633.603.573.643.713.74甲苯CH32.362.322.302.112.332.32CH（o/p）7.177.207.187.027.307.