Filtering of spinning sidebands in 1D MAS NMR spectra

Spinning sidebands (SSBs) in the MAS NMR spectrum of a polycrystalline soli d are related to the principal values of the chemical shift or quadrupole c oupling tensors. At present, 2D methods are widely used to sort out the SSB s for each isotropic peak. Here a simple and efficient method for separatin g the SSBs in 1D MAS NMR spectra is described. It is based on finding the o ptimal spinning rate with a mathematical algorithm and subsequently treatin g the spectra with filtering functions. (C) 2001 Academic Press.