Solid-state 33S MAS NMR of inorganic sulfates

Journal of Magnetic Resonance
Todd A WaglerPeter L Rinaldi

Abstract

Solid-state (33)S MAS NMR spectra of a variety of inorganic sulfates have been obtained at magnetic field strengths of 4.7, 14.1, 17.6, and 18.8 T. Some of the difficulties associated with obtaining natural abundance (33)S NMR spectra have been overcome by using a high magnetic field strength and magic angle spinning (MAS). Multiple factors were considered when analyzing the spectral linewidths, including magnetic field inhomogeneity, dipolar coupling, chemical shift anisotropy, chemical shift dispersion, and quadrupolar coupling. In most of these sulfate samples, quadrupolar coupling was the dominant line broadening mechanism. Nuclear electric quadrupolar coupling constants (C(q)) as large as 2.05 MHz were calculated using spectral simulation software. Spectral information from these new data are compared with X-ray measurements and GAUSSIAN 98W calculations. A general correlation was observed between the magnitude of the C(q) and the increasing difference between S-O bond distances within the sulfate groups. Solid-state (33)S spin-lattice (T(1)) relaxation times were measured and show a significant reduction in T(1) for the hydrated sulfates. This is most likely the result of the modulation of the time-dependent electric fiel...Continue Reading

References

Aug 1, 1990·Physical Review. a·D Sundholm, J Olsen
Oct 1, 1991·Physical Review. B, Condensed Matter·D LiuF G Ullman
Oct 3, 2001·Physiological Reviews·D Markovich
Dec 13, 2001·Journal of Magnetic Resonance·R Musio, O Sciacovelli
Apr 26, 2003·Journal of Magnetic Resonance·Todd A WaglerAllen R Palmer
Mar 29, 1985·Science·E Oldfield, R J Kirkpatrick
Apr 1, 1986·Journal of the American Chemical Society·H Eckert, J P Yesinowski

❮ Previous
Next ❯

Citations

Aug 5, 2009·Physical Chemistry Chemical Physics : PCCP·Hans J JakobsenWolfgang Bensch
Dec 10, 2008·Solid State Nuclear Magnetic Resonance·T F KempN Carthey
Aug 25, 2017·Physical Chemistry Chemical Physics : PCCP·Akiko SasakiStephen Wimperis
Oct 8, 2019·Chemical Communications : Chem Comm·David M HalatClare P Grey
Dec 23, 2008·Chemical Communications : Chem Comm·Andre SutrisnoYining Huang
Jan 9, 2010·The Journal of Physical Chemistry. a·Igor MoudrakovskiJohn Ripmeester
Dec 23, 2010·The Journal of Physical Chemistry. a·Luke A O'Dell, Christopher I Ratcliffe

❮ Previous
Next ❯

Related Feeds

Basophils

Basophils are myeloid cells with a high affinity IgE receptor and is involved in inflammatory responses during allergy. Discover the latest research on Basophils here.