ORGANIC CHEMISTRY Chapter 9 o Electromagnetic radiation is one type of energy e=h hc o NMR involves absorption of energy in the radiofrequency range Highe Lowest waelenst ium IINO 10 Gamma I ray X viole Infrared Radio frequency iN 60O 7 751 VIsible region Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 9 Electromagnetic radiation is one type of energy. E = hv = hcλ NMR involves absorption of energy in the radiofrequency range