ORGANIC CHEMISTRY Chapter 14 HNMR:ArHδ6.0~90ppm o C NMR: benzene ring 8 100 170 ppm oIR:Ar-H(C-H)~3030cm1,C=C1450~1600 cm UV:250~275mm o MS: m/=91(alkylbenzene), m/277(C6H5#) Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 14 1H NMR: Ar-H δ 6.0 ~ 9.0 ppm 13C NMR: benzene ring δ 100 ~ 170 ppm IR: Ar-H(C–H) ~ 3030 cm-1, C=C 1450 ~ 1600 cm-1. UV: 250 ~ 275 nm MS: m/z 91(alkylbenzene), m/z 77(C6H5+)