O'Dell, L. A., Klimm, K., Freitas, J. C. C., Kohn, S. C. and Smith, Mark E.. (2009) (33)S MAS NMR of a disordered sulfur-doped silicate: signal enhancement via RAPT, QCPMG and adiabatic pulses. Applied Magnetic Resonance, Vol.35 (No.2). pp. 247-259. ISSN 0937-9347

Full text not available from this repository.

Abstract

Three different signal enhancement techniques have been applied to (33)S magic-angle spinning nuclear magnetic resonance (MAS NMR) of a disordered silicate containing 1.15 wt% (33)S. Partial saturation of the satellite transitions was achieved using a rotor-assisted population transfer (RAPT) pulse sequence, resulting in a signal enhancement of 1.63, albeit with a slight distortion of the line shape due to selective excitation. Adiabatic inversion of the satellite transitions by various amplitude-and frequency-modulated pulse shapes (such as hyperbolic secant and wideband uniform-rate smooth truncation) was also attempted, resulting in a signal enhancement of up to 1.85, with no apparent line shape distortion. Quadrupolar Carr-Purcell-Meiboom-Gill (QCPMG) and RAPT-QCPMG sequences were also used, both of which yielded spikelet spectra that accurately reflected the MAS line shape with a greatly improved signal-to-noise ratio. It is hoped that this study demonstrates that (33)S solid-state MAS NMR is now feasible even on disordered, low-sulfur-content systems.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Divisions:	Administration > Vice Chancellor's Office Faculty of Science > Physics
Journal or Publication Title:	Applied Magnetic Resonance
Publisher:	Springer
ISSN:	0937-9347
Official Date:	February 2009
Volume:	Vol.35
Number:	No.2
Number of Pages:	13
Page Range:	pp. 247-259
Identification Number:	10.1007/s00723-008-0159-8
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Natural Environment Research Council (Great Britain) (NERC), British Council Academic Research Collaboration, Engineering and Physical Sciences Research Council (EPSRC), University of Warwick
Grant number:	NE/C510967/1, 1280
URI:	http://wrap.warwick.ac.uk/id/eprint/28073

Data sourced from Thomson Reuters' Web of Knowledge

Request changes or add full text files to a record

Actions (login required)

View Item