You should be able to recognize the correlation between different data
and values from an 1H-NMR- spectrum and the proton
arrangement in a chemical compound; and apply this knowledge:
Value in spectrum
Protons
Number of resonance signals
Number of equivalent groups of protons
Frequency of resonance signals
Type of protons
Intensity of resonance signals
Number of protons contributing to the signal
Line-splitting of resonance signals
Spatial conformation of the protons
Therefore you should be able to
decide which protons in a compound are chemically equivalent;
realize that methyl- and methylene protons in flexible systems only show
one shared signal;
use tables with the expected values for proton chemical shifts;
Conversion of chemical shift data between
Dn,
d or t;
interprete the integrals of NMR spectra;
predict the relative intensities of proton signals;
explain the line-splitting of signals due to indirect spin-spin coupling
in simple cases;
predict the multiplicity of the line splitting caused by non-equivalent
neighboring protons;
predict the relative intensities of the lines in a multiplet caused by
coupling to a neighboring proton;
decide whether coupling will occur between two protons;
determin the coupling constant based on a spectrum;
know that the coupling constant is independent from the frequency of the
spectrometer; realize that "first-order"-spectra are only obtained under
very specific conditions, and that most spectra are considerably
more complicated.
You should be able to predict the expected "first-order" spectrum based
on the structure of a given compound, and vice versa select the correct
stereo isomer based on a given first-order spectrum.
