Q-shear transformation for MQMAS and STMAS NMR spectra

Hung, Ivan; Trebosc, Julien; Hoatson, Gina L.; Vold, R. L.; Amoureux, Jean-Paul; Gan, Zhehong

Document type :

Article dans une revue scientifique: Article original

DOI :

10.1016/j.jmr.2009.08.007

PMID :

19733107

Permalink :

http://hdl.handle.net/20.500.12210/83686

Title :

Q-shear transformation for MQMAS and STMAS NMR spectra

Author(s) :

Hung, Ivan [Auteur]
National High Magnetic Field Laboratory [MPA-NHMFL]
Trebosc, Julien [Auteur]

Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Hoatson, Gina L. [Auteur]
College of William and Mary [Williamsburg] [WM]
Vold, R. L. [Auteur]
College of William and Mary [Williamsburg] [WM]
Amoureux, Jean-Paul [Auteur]

Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Gan, Zhehong [Auteur]
National High Magnetic Field Laboratory [MPA-NHMFL]

Journal title :

Journal of Magnetic Resonance

Abbreviated title :

J. Magn. Reson.

Volume number :

201

Pages :

81-86

Publication date :

2009-11

ISSN :

1090-7807

English keyword(s) :

Isotropic
Nb-93
Sc-45
Shearing transformation
Representation
STMAS
MQMAS

HAL domain(s) :

Chimie

English abstract : [en]

The multiple-quantum magic-angle spinning (MQMAS) and satellite-transition magic-angle spinning (STMAS) experiments refocus second-order quadrupolar broadening of half-integer quadrupolar spins in the form of two-dimensional ...
Show more >The multiple-quantum magic-angle spinning (MQMAS) and satellite-transition magic-angle spinning (STMAS) experiments refocus second-order quadrupolar broadening of half-integer quadrupolar spins in the form of two-dimensional experiments. Isotropic shearing is usually applied along the indirect dimension of the 2D spectra such that an isotropic projection free of anisotropic quadrupolar broadening can be obtained. An alternative shear transformation by a factor equal to the coherence level (quantum number) selected during the evolution period is proposed. Such a transformation eliminates chemical shift along the indirect dimension leaving only the second-order quadrupolar-induced shift and anisotropic broadening, and is expected to be particularly useful for disordered systems. This transformation, dubbed Q-shearing, can help avoid aliasing problems due to large chemical shift ranges and spinning sidebands. It can also be used as an intermediate step to the isotropic representation for expanding the spectral window of rotor-synchronized experiments.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Research team(s) :

RMN et matériaux inorganiques (RM2I)

Submission date :

2023-05-30T18:00:45Z
2024-04-25T12:51:08Z

Version	Link	Modification date
2	20.500.12210/83686*	2024-04-25T12:47:42Z
1	20.500.12210/83686.1	2023-05-30T18:00:45Z

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Q-shear transformation for MQMAS and STMAS ...

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Excel

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