NMR Spectroscopy
When placed in a magnetic field, all the random spins of the nuclei

reverse direction
rotate to 90° away from the induced field
align with the magnetic field
stop

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NMR Spectroscopy
Coupling causes the peaks in 1H NMR spectra to be split into

multiple peaks equal to the number of surrounding carbon atoms
multiple peaks equal to the number of hydrogen on surrounding atoms, plus one
two peaks
multiple peaks equal to the number of hydrogens on surrounding atoms

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NMR Spectroscopy
What is shielding in NMR?

When the magnetic moment of an atom blocks the full induced magnetic field from surrounding nuclei
Putting metal around an Rf source
Using a curved piece of metal to block an opponents attack
Blocking parts of a molecule from Rf radiation

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NMR Spectroscopy
Why is it important to use a deuterated solvent?

They dissolve polymer the fastest
NMR uses least of this solvent
So the spectrometer can lock onto the sample to prevent the spectrum from drifting during aquisition
Expensive solvents work best with NMR

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