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Article Dans Une Revue Magnetic resonance in chemistry . MRC Année : 2019

Hadamard acquisition of 13C-13C 2D correlation NMR spectra

Résumé

We show that a multiselective excitation with Hadamard encoding is a powerful tool for 2-D acquisition of 13 C─13 C homonuclear correlations. This method is not designed to improve the sensitivity, but rather to reduce the experiment time, provided there is sufficient sensitivity. Therefore, it allows fast acquisition of such 2-D spectra in labeled molecules. The technique has been demonstrated using a U─13 C─15 N histidine hydrochloride monohydrate sample allowing each point of the build-up curves of the 13 C─13 C cross-peaks to be recorded within 4 min 35 s, which is very difficult with conventional methods. Using the U─13 C─15 N f-MLF sample, we have demonstrated that the method can be applied to molecules with 14 13 C resonances with a minimum frequency separation of 240 Hz.
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Dates et versions

hal-04313887 , version 1 (29-11-2023)

Identifiants

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Piotr Paluch, Eriks Kupce, Julien Trebosc, Olivier Lafon, Jean-Paul Amoureux. Hadamard acquisition of 13C-13C 2D correlation NMR spectra. Magnetic resonance in chemistry MRC, 2019, Magnetic resonance in chemistry MRC, ⟨10.1002/mrc.4969⟩. ⟨hal-04313887⟩
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