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Article Dans Une Revue Solid State Nuclear Magnetic Resonance Année : 2010

NMR cogwheel phase cycling determination with web tools: Amplitude-modulated z-filter MQMAS sequence

Résumé

Our recent method based on the use of web tools (XML and XSLT) for constructing cogwheel phase cycles is extended to the selection of two sym. coherence transfer pathways in the case of an amplitude-modulated z-filter MQMAS sequence. For all spins (I=3/2, 5/2, 7/2 and 9/2) and all MQ expts. we compare cogwheel phase cycling with the traditional "nested" phase cycling. The principal difference in the no. of phase cycling steps lies in the use of digitizer phase. For nested phase cycling, this no. depends on the use of ref. receiver phase or digitizer phase, while cogwheel phase cycling does not. As an illustration we consider the case of a+/-3QMAS experiment for spin I=7/2 system applied to cobalt-59 in [Co(NH3)6]Cl3 powder. We also explore the selection of two non-sym. coherence transfer pathways in the case of an amplitude-modulated shifted-echo MQMAS sequence. [on SciFinder(R)]

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hal-00604781 , version 1 (29-06-2011)

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Yannick Millot, Redouane Hajjar, Pascal P. Man. NMR cogwheel phase cycling determination with web tools: Amplitude-modulated z-filter MQMAS sequence. Solid State Nuclear Magnetic Resonance, 2010, 38 (1), pp.19-26. ⟨10.1016/j.ssnmr.2010.06.001⟩. ⟨hal-00604781⟩
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