What is the formla for the energy difference between the allowed nuclear spin states for #""^1 H# nuclei?
1 Answer
The formula is
Explanation:
In the presence of an applied external magnetic field,
A large magnet creates a homogeneous external magnetic field,
The energy difference
NMR spectroscopy records transitions between these spin states induced by a radio frequency electromagnetic field called the
In practice, the electrons surrounding the nucleus produce a small magnetic field
The field experienced by the proton is then
Finally, there is a proportionality constant
The final equation is
The graph below shows how the energy difference between the two spin states varies with the applied field.