Characteristic Features of High Resolution NMR Spectra in Solids

8 Characteristic features of high resolution NMR spectra in solids 

There are two factors we discussed previously and which affect in a very different way the spectra of solids. These are the relaxation time and the dipolar (through space) coupling. 

Another problem related to relaxation in solids is the following. Thus, one thing is the disappearance of the magnetization (M) in the x-y plane (the 

The coupling pattern and the line broadening are due to the through space dipolar couplings. 

There is still another factor contributing to the line broadening in soUds which is worth being mentioned, namely the chemical shift anisotropy. Thus, the chemical shift of a particular nucleus depends on electron shielding. As the electron shielding also depends on orientation, and as all possible orientations are present in solids, this is an additional source of line broadening. 

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