Testing the sensitivity limits of ³³S NMR: an ultra-wideline study of elemental sulfur.
Preliminary DFT investigations into the feasibility of using (33)S solid-state NMR to study organic and biological molecules suggest that very large (33)S quadrupolar coupling constants (>40MHz) are not uncommon. We have therefore investigated the possibility of using recently developed ultra-wideline techniques to record such (33)S powder patterns at a high magnetic field (21.1T). A WURST-echo sequence was used to record the spectrum from a>99.9% enriched sample of elemental sulfur, resulting in the largest (33)S quadrupolar coupling constant yet measured by solid-state NMR (C(Q)=43.3 MHz). Implications of this experiment are briefly discussed.
O'Dell
Luke A
LA
Steacie Institute for Molecular Sciences, National Research Council, 100 Sussex Drive, Ottawa, Ontario, Canada K1A 0R6.
Moudrakovski
Igor L
IL
D000465:Algorithms; D003460:Crystallization; D003461:Crystallography; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D013455:Sulfur / Q000737:chemistry*; D013457:Sulfur Compounds / Q000737:chemistry; D013460:Sulfur Isotopes / Q000737:chemistry*; D013696:Temperature
D013457:Sulfur Compounds; D013460:Sulfur Isotopes; D013455:Sulfur