Chemical Physics Letters, Vol.327, No.5-6, 319-324, 2000
Deuterium-carbon NMR correlation spectroscopy: a tool for structural characterization of solids
Correlation between quadrupolar interactions of deuterons and chemical-shielding interactions of spin-1/2 in spatial proximity by 2D solid-state NMR provides structural information, such as torsional angles and relative orientations of molecular fragments. The correlation is established by cross-polarization under slow magic-angle sample spinning over the whole frequency ranges of both nuclei virtually uniformly. We demonstrate an application to glycine, where the torsional angle around the CO-C-alpha bond is evaluated by measuring the relative orientations between the (CO)-C-13 chemical-shielding-anisotropy tensor and the two D-2(alpha) quadrupolar tensors. The technique can be used to characterize the conformation of synthetic and bio-polymers.