化合物碳氢谱和取代基位移增量的确定

Determination of the NMR Spectrum and the Substituting Group Parametrs of Compound

采用核磁共振方法测定了化合物1,2-二-[-α-(β-甲基-α′-间氟阶基苯基)噻吩]六氟环戊烯的碳、氢谱。根据计算和实测结果确定了取代基β-甲基噻吩对苯环碳化学位移增量参数Ai:A1=17.60,Ao=2.20,Am=3.50,Ap=5.40、质子化学位移增量参数Zi:Zo=0.20,Zm=0.12,Zp=0.16;并确定了化合物的质子化学位移δH、13C化学位移δc的归属。

NMR were used to investigate the organic compound： 1,2-di [-α-（β-methyl-α＇-m-fluoromethylphenyl）thiophene] hexafluorocyclo pentene. The chemical shift δC, δH, Ai, Zi of the compound were determined. Ai being the substituting group parameter of β-methyl-thiophene that cause changing δc of carbon in aromatic ring is Al = 17.60, Ao = 2.20, Am = 3.50, Ap = 5.40; Zi being the substituting group parameter of β-methyl-thiophene that cause changing δH of carbon in aromatic ring is Zo = 0.20, Zm = 0. 12, Zp = 0.16, respectively.