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research article

Broadband inversion for MAS NMR with single-sideband-selective adiabatic pulses

Pell, Andrew J.
•
Kervern, Gwendal
•
Emsley, Lyndon  
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2011
Journal of Chemical Physics

We explain how and under which conditions it is possible to obtain an efficient inversion of an entire sideband family of several hundred kHz using low-power, sideband-selective adiabatic pulses, and we illustrate with some experimental results how this framework opens new avenues in solid-state NMR for manipulating spin systems with wide spinning-sideband (SSB) manifolds. This is achieved through the definition of the criteria of phase and amplitude modulation for designing an adiabatic inversion pulse for rotating solids. In turn, this is based on a framework for representing the Hamiltonian of the spin system in an NMR experiment under magic angle spinning (MAS). Following earlier ideas from Caravatti et al. [J. Magn. Reson. 55, 88 (1983)], the so-called ``jolting frame'' is used, which is the interaction frame of the anisotropic interaction giving rise to the SSB manifold. In the jolting frame, the shift modulation affecting the nuclear spin is removed, while the Hamiltonian corresponding to the RF field is frequency modulated and acquires a spinning-sideband pattern, specific for each crystallite orientation. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3521491]

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Type
research article
DOI
10.1063/1.3521491
Web of Science ID

WOS:000286471900018

Author(s)
Pell, Andrew J.
Kervern, Gwendal
Emsley, Lyndon  
Deschamps, Michael
Massiot, Dominique
Grandinetti, Philip J.
Pintacuda, Guido
Date Issued

2011

Publisher

AMER INST PHYSICS

Published in
Journal of Chemical Physics
Volume

134

Issue

2

Article Number

024117

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LRM  
Available on Infoscience
January 8, 2015
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/110009
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