Introduction NMR is the most powerful tool available for organic structure determination. It is used to study a wide variety of nuclei: 1H ■13C ■15N ■19F ■31P Chapter 13 2Chapter 13 2 Introduction • NMR is the most powerful tool available for organic structure determination. • It is used to study a wide variety of nuclei: ▪ 1H ▪ 13C ▪ 15N ▪ 19F ▪ 31P