@磁共起 正戊烷 C1和C5,C2和C4是对称的三个共振峰 CH3-CH2-CH2-CH2--CH 34 81(C和C)=-2.6+9.1(1)+9.4(1)-2.5(1) 13.4ppm(实测13.7ppm) 82(C2和C)=-2.6+9.1(2)+9.4(1)-2.5(1) 22.5ppm(实测22.6ppm) 83(C3)=-2.6+9.1(2)+9.4(2) =34,4ppmn(实测345pm)C 1 和 C 5 ，C 2 和 C 4 是对称的三个共振峰 CH3—CH2—CH2—CH2—CH3 1 2 3 4 5 1(C1和C 5) = -2.6+9.1(1)+9.4(1)-2.5(1) =13.4ppm (实测13.7ppm) 2(C2和C 4) = -2.6+9.1(2)+9.4(1)-2.5(1) =22.5ppm (实测22.6ppm) 3(C3) = -2.6+9.1(2)+9.4(2) =34.4ppm (实测34.5ppm) 正戊烷