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Article Dans Une Revue Solid State Nuclear Magnetic Resonance Année : 2003

I-STMAS, a new high-resolution solid-state NMR method for half-integer quadrupolar nuclei

Résumé

In complement to the previously proposed multiple-quantum magic-angle-spinning (MQMAS) and satellite transition MAS (STMAS) sequences, we describe a new two-dimensional high-resolution method, inverse-STMAS (I-STMAS) that allows second-order quadrupolar averaging. Like STMAS, I-STMAS correlates second-order quadrupole dephasing occurring on coherences related to the central transition (CT) and satellite transitions (STs), but does it in a reverse manner: CT evolves during the t1 period while STs are detected during t2. Although STMAS and I-STMAS are symmetric, there are some interesting and useful differences between the two methods. For example, we show that during the acquisition time t2, it is possible to over-sample the data and then to process them to suppress the CT–CT correlation resonance.

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Autre

Dates et versions

hal-00107179 , version 1 (17-10-2006)

Identifiants

Citer

Jean-Paul Amoureux, Cláudia Morais, Julien Trébosc, João Rocha, Christian Fernandez. I-STMAS, a new high-resolution solid-state NMR method for half-integer quadrupolar nuclei. Solid State Nuclear Magnetic Resonance, 2003, 23, pp.213-223. ⟨10.1016/S0926-2040(03)00011-0⟩. ⟨hal-00107179⟩
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