title: New opportunities in acquisition and analysis of natural abundance complex solid-state 33S MAS NMR spectra: (CH3NH3)2WS4.
abstract: Population transfer from the satellite transitions to the central transition in solid-state (33)S MAS NMR, employing WURST inversion pulses, has led to detection of the most complex (33)S MAS NMR spectrum observed so far. The spectrum is that of (CH(3)NH(3))(2)WS(4) and consists of three sets of overlapping resonances for the three non-equivalent S atoms, in accord with its crystal structure. It has been fully analyzed in terms of three sets of (33)S quadrupole coupling and anisotropic/isotropic chemical shift parameters along with their corresponding set of three Euler angles describing the relative orientation of the tensors for these two interactions. The three sets of spectral parameters have been assigned to the three different sulfur sites in (CH(3)NH(3))(2)WS(4) by relating the changes observed for the spectral parameters to the changes in crystal structures in a comparison with the corresponding data for the isostructural (NH(4))(2)WS(4) analog.
authors: Instrument Centre for Solid-State NMR Spectroscopy, Department of Chemistry, Aarhus University, Aarhus C, Denmark. hja@chem.au.dk
authors: Hans J
authors: HJ
authors: Jakobsen
authors: Henrik
authors: H
authors: Bildsøe
authors: Jørgen
authors: J
authors: Skibsted
authors: Michael
authors: M
authors: Brorson
authors: Bikshandarkoil R
authors: BR
authors: Srinivasan
authors: Christian
authors: C
authors: Näther
authors: Wolfgang
authors: W
authors: Bensch
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*; D017973:Tungsten Compounds / Q000737:chemistry*
chemical_list: D000644:Quaternary Ammonium Compounds; D017973:Tungsten Compounds