Nuclear magnetic resonance spectroscopy

Over the past fifty years nuclear magnetic resonance spectroscopy, commonly referred to as NMR, has become the
preeminent technique for determining the structure of organic compounds. Of all the spectroscopic methods, it is the only one for which a complete analysis and interpretation of the entire spectrum is normally expected. Although larger amounts of sample are needed than for mass spectroscopy, NMR is non-destructive, and with modern inst ruments good data may be obtained from samples weighing less than a milligram.