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A simple one-dimensional solid-state NMR method to characterize the nuclear spin interaction tensors associated with
1Biophysics Research Division and Department of Chemistry, The University of Michigan, Ann Arbor, Michigan, 48109-1055, USA.
Abstract:
We propose a simple one-dimensional RF pulse sequence for the study of chemical shift and heteronuclear dipolar coupling tensors of oriented as well as unoriented solids. An off-resonance RF decoupling of protons during the signal acquisition of less sensitive nuclei is used to suppress homonuclear 1H-1H dipolar interactions. This method is experimentally demonstrated on peptide samples selectively labeled with 15N isotope.