Nuclear Magnetic Resonance Spectroscopy Definition of NMR:- Nuclear magnetic resonance is defined as a condition when the frequency of the rotating magnetic field becomes equal to the frequency of the processing nucleus. If ratio frequency energy and a, magnetic field are simultaneously applied to the nucleus, a condition as given by the equation v=γH0/2π is met. The system at this condition is said to be in resonance [ v= frequency, γ= proportionalitt constant and H0= magnetic field]. Theory of NMR:- The hydrogen nucleus or protons can be regarded as a spinning postively charged unit and so it will generate a tiny magnetic field HO along its spinning axis. Now if this nucleus is placed in an external magnetic field HO, it will naturally line up either parallel. (1) Relaxation Process- Relaxation processes are defined as different types of radiation-less transitions by which a nucle...
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