NMR Spectroscopy
What is shielding in NMR?

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

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NMR Spectroscopy
All hydrogen atoms

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

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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
multiple peaks equal to the number of surrounding carbon atoms
two peaks
multiple peaks equal to the number of hydrogens on surrounding atoms

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