NMR Spectroscopy
All hydrogen atoms

have the same resonance frequency
resonate at different frequencies depending on their environment.
resonate at about the same frequency as carbon
are attached to carbon

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

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

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

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NMR Spectroscopy
What is shielding in NMR?

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

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