The Pople notation is named after the Nobel laureate John Pople and is a simple method of presenting second-order spin coupling systems in NMR. The notation labels each (NMR active) nucleus with a letter of the alphabet. The difference in chemical shift, δ, relative to the J-coupling between nuclei mirrors the separation of the letter labels in the Latin alphabet.
The Pople notation is named after the Nobel laureate John Pople and is a simple method of presenting second-order spin coupling systems in NMR. The notation labels each (NMR active) nucleus with a letter of the alphabet. The difference in chemical shift, δ, relative to the J-coupling between nuclei mirrors the separation of the letter labels in the Latin alphabet.
Source: Wikipedia "Pople notation" · CC BY-SA 4.0
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