Isotropic filtering using polyhedral phase cycles: application to singlet state NMR
Pileio, Giuseppe and Levitt, Malcolm H. (2008) Isotropic filtering using polyhedral phase cycles: application to singlet state NMR. Journal of Magnetic Resonance, 191, (1), 148-155. (doi:10.1016/j.jmr.2007.11.021).
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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.
|Keywords:||isotropic filtering, singlet states, long-lived spin states, spherical tensor operators, phase cycling|
|Subjects:||Q Science > Q Science (General)|
|Divisions:||University Structure - Pre August 2011 > School of Chemistry
|Date Deposited:||21 Apr 2010 13:42|
|Last Modified:||28 Mar 2014 15:16|
Long-Lived Spin States in Nuclear Magnetic Resonance
Funded by: EPSRC (EP/D079209/1)
Led by: Malcolm Harris Levitt
1 May 2007 to 31 October 2010
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