Abstract
High Resolution NMR study of liquids adsorbed on solids gives information on the solid texture and the bond between solid and adsorbed molecules. For Carbons, diamagnetic anisotropy of crystalized parts is responsible for the observed line shift. A foil stack pattern for the local organization around the pores, allows us to calculate this shift and gives a good agreement with the experimental values. Scalar interaction with unpaired electrons or change in screening constant by a chemical bond are negligible effects in the case of non polar adsorbed molecules studied here. From proton or fluor line width studies, it is possible to deduce the existence of two causes of line width: A width of dipolar origine and a distribution of the local magnetic field. Correlations times for some type of motions may be evaluated.
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