circulution 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 Chapter 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 =>