Magic angle spinning (MAS) NMR linewidths in the presence of solid-state dynamics

Thrippleton, M. J., Cutajar, M. and Wimperis, S. (2008) Magic angle spinning (MAS) NMR linewidths in the presence of solid-state dynamics. Chemical Physics Letters, 452(4-6), pp. 233-238. (doi: 10.1016/j.cplett.2007.12.071)

Abstract

In solid-state NMR, the magic angle spinning (MAS) technique fails to suppress anisotropic spin interactions fully if reorientational dynamics are present, resulting in a decay of the rotational-echo train in the time-domain signal. We show that a simple analytical model can be used to quantify this linebroadening effect as a function of the MAS frequency, reorientational rate constant, and magnitude of the inhomogeneous anisotropic broadening. We compare this model with other theoretical approaches and with exact computer simulations, and show how it may be used to estimate rate constants from experimental NMR data.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Wimperis, Professor Stephen and Cutajar, Miss Marica and Thrippleton, Dr Michael
• Authors: Thrippleton, M. J., Cutajar, M., and Wimperis, S.
• Subjects: Q Science > QC Physics
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Chemical Physics Letters
• Publisher: Elsevier BV
• ISSN: 0009-2614
• ISSN (Online): 1873-4448
• Published Online: 05 January 2008
• Copyright Holders: Copyright © 2008 Elsevier
• First Published: First published in Chemical Physics Letters 452(4-6)
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
42618	1	Satellite-transition MAS - a new technique for high-resolution quadrupolar NMR	Stephen Wimperis	Engineering & Physical Sciences Research Council (EPSRC)	GR/T23824/01	Chemistry