Isotropic filtering using polyhedral phase cycles: application to singlet state NMR
Isotropic filtering using polyhedral phase cycles: application to singlet state NMR
A technique is described for filtering out the components of an NMR signal that have passed through an isotropic spin order term. The method involves a coordinated cycle of three radiofrequency phase angles, where two of the phases correspond to the polar angles describing the vertices of a regular polyhedron, and the third angle is stepped around a circle. The most economical isotropic filtering scheme involves a 12-step phase cycle based on tetrahedral symmetry. The method is used to filter out NMR signals that have passed through singlet populations in a solution NMR experiment.
isotropic filtering, singlet states, long-lived spin states, spherical tensor operators, phase cycling
148-155
Pileio, Giuseppe
13f78e66-0707-4438-b9c9-6dbd3eb7d4e8
Levitt, Malcolm H.
bcc5a80a-e5c5-4e0e-9a9a-249d036747c3
March 2008
Pileio, Giuseppe
13f78e66-0707-4438-b9c9-6dbd3eb7d4e8
Levitt, Malcolm H.
bcc5a80a-e5c5-4e0e-9a9a-249d036747c3
Pileio, Giuseppe and Levitt, Malcolm H.
(2008)
Isotropic filtering using polyhedral phase cycles: application to singlet state NMR.
Journal of Magnetic Resonance, 191 (1), .
(doi:10.1016/j.jmr.2007.11.021).
Abstract
A technique is described for filtering out the components of an NMR signal that have passed through an isotropic spin order term. The method involves a coordinated cycle of three radiofrequency phase angles, where two of the phases correspond to the polar angles describing the vertices of a regular polyhedron, and the third angle is stepped around a circle. The most economical isotropic filtering scheme involves a 12-step phase cycle based on tetrahedral symmetry. The method is used to filter out NMR signals that have passed through singlet populations in a solution NMR experiment.
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Published date: March 2008
Keywords:
isotropic filtering, singlet states, long-lived spin states, spherical tensor operators, phase cycling
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Local EPrints ID: 146437
URI: http://eprints.soton.ac.uk/id/eprint/146437
PURE UUID: 73a5b7f8-0d78-46f1-acec-0d66b13625c2
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Date deposited: 21 Apr 2010 13:42
Last modified: 14 Mar 2024 02:50
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