Nuclear spin in NMR

In addition to the information available from g-values, we can obtain information about nuclei with nuclear spin quantum number / 0 which are close to the paramagnetic centre. The spins of such nuclei interact magnetically with the unpaired electron and give rise to a hyperfine interaction. There is a direct analogy here with coupling of nuclear spins in NMR spectroscopy. The hyperfine interaction is added to... 

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