【摘要】 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。更多还原

【Abstract】 NMR were used to investigate the organic compound: 1,2-di[-α-（β-methylα′-m-fluoromethylphenyl）thiophene]hexafluorocyclo pentene.The chemical shift δ_C,δ_H,A_i,Z_i of the compound were determined.A_i being the substituting group parameter of β-methyl-thiophene that cause changing δ_C of carbon in aromatic ring is A₁=17.60,A_o=2.20,A_m=（3.50）,A_p=5.40;Z_i being the substituting group parameter of β-methyl-thiophene that cause changing δ_H of carbon in aromatic ring is Z_o=0.20,Z_m=0.12,Z_p=0.16,respectively.更多还原