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A dedicated equipment has been designed for solid state NMR imaging in the spatial direction coinciding with the rotation axis of a 13C CP/MAS probe. It involves a two-turn B1 gradient coil whose plane is perpendicular to that axis and a 1H–13C doubly tuned saddle coil used for normal spectroscopic operations, orthogonal to the latter. The experiment provides a two-dimensional diagram with 13C chemical shift in one dimension whereas the second dimension corresponds to the space variable. Some test experiments demonstrate the validity of this approach.
Document Type: Miscellaneous
Laboratoire de Méthodologie RMN,, Université H. Poincaré, Vandoeuvre-les-Nancy Cedex, 54506, France