Analytical theory of gamma-encoded double-quantum recoupling sequences in solid-state nuclear magnetic resonance
Analytical theory of gamma-encoded double-quantum recoupling sequences in solid-state nuclear magnetic resonance
Many important double-quantum recoupling techniques in solid-state NMR are classified as being ?-encoded. This means that the phase of the double-quantum effective Hamiltonian, but not its amplitude, depends on the third Euler angle defining the orientation of the molecular spin system in the frame of the magic-angle-spinning rotor. In this paper, we provide closed analytical solutions for the dependence of the powder-average double-quantum-filtered signal on the recoupling times, within the average Hamiltonian approximation for ?-encoded pulse sequences. The validity of the analytical solutions is tested by numerical simulations. The internuclear distance in a 13C2-labelled retinal is estimated by fitting the analytical curves to experimental double-quantum data.
angle-spinning nmr, symmetry, fresnel, polarization transfer, homonuclear rotary resonance, cross-polarization, magic-angle-spinning, symmetry-based recoupling, proton-enhanced nmr, principles, solid-state nmr, recoupling, pulse sequence, rotating solids, spectroscopy, dilute spins
65-74
Pileio, G.
13f78e66-0707-4438-b9c9-6dbd3eb7d4e8
Concistre, M.
ec95c9d4-ecb8-4c28-a464-8c3adba9e86d
McLean, N.
96f9519d-6ecf-40a4-a383-f85e26cd7782
Gansmulller, A.
eeea4f6c-9cdf-4533-af5a-e7450387c922
Brown, R.C.D.
21ce697a-7c3a-480e-919f-429a3d8550f5
Levitt, M.H.
bcc5a80a-e5c5-4e0e-9a9a-249d036747c3
2007
Pileio, G.
13f78e66-0707-4438-b9c9-6dbd3eb7d4e8
Concistre, M.
ec95c9d4-ecb8-4c28-a464-8c3adba9e86d
McLean, N.
96f9519d-6ecf-40a4-a383-f85e26cd7782
Gansmulller, A.
eeea4f6c-9cdf-4533-af5a-e7450387c922
Brown, R.C.D.
21ce697a-7c3a-480e-919f-429a3d8550f5
Levitt, M.H.
bcc5a80a-e5c5-4e0e-9a9a-249d036747c3
Pileio, G., Concistre, M., McLean, N., Gansmulller, A., Brown, R.C.D. and Levitt, M.H.
(2007)
Analytical theory of gamma-encoded double-quantum recoupling sequences in solid-state nuclear magnetic resonance.
Journal of Magnetic Resonance, 186 (1), .
(doi:10.1016/j.jmr.2007.01.009).
Abstract
Many important double-quantum recoupling techniques in solid-state NMR are classified as being ?-encoded. This means that the phase of the double-quantum effective Hamiltonian, but not its amplitude, depends on the third Euler angle defining the orientation of the molecular spin system in the frame of the magic-angle-spinning rotor. In this paper, we provide closed analytical solutions for the dependence of the powder-average double-quantum-filtered signal on the recoupling times, within the average Hamiltonian approximation for ?-encoded pulse sequences. The validity of the analytical solutions is tested by numerical simulations. The internuclear distance in a 13C2-labelled retinal is estimated by fitting the analytical curves to experimental double-quantum data.
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Published date: 2007
Keywords:
angle-spinning nmr, symmetry, fresnel, polarization transfer, homonuclear rotary resonance, cross-polarization, magic-angle-spinning, symmetry-based recoupling, proton-enhanced nmr, principles, solid-state nmr, recoupling, pulse sequence, rotating solids, spectroscopy, dilute spins
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Local EPrints ID: 54360
URI: http://eprints.soton.ac.uk/id/eprint/54360
PURE UUID: 680b4649-dafa-49d2-8d18-1c370fc41f41
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Date deposited: 31 Jul 2008
Last modified: 16 Mar 2024 03:59
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Author:
M. Concistre
Author:
N. McLean
Author:
A. Gansmulller
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