Fast high-resolution J-resolved correlation spectroscopy in inhomogeneous fields

Chen, Hao; Zhang, Zhiyong; Cai, Shuhui; Chen, Zhong

doi:10.1016/j.cplett.2014.10.058

Cited by 3 publications

(1 citation statement)

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“…This strategy was extended to the acquisition of high‐resolution 3D spectrum in inhomogeneous fields by Chen et al . Intermolecular zero‐quantum coherence was used to remove the influence of the field inhomogeneity, while the spatial encoding technique reduces the acquisition time by orders of magnitude.…”

Section: Higher Dimensionalitymentioning

confidence: 99%

Fast hybrid multi‐dimensional NMR methods based on ultrafast 2D NMR

Akoka

Giraudeau

2015

Magnetic Reson in Chemistry

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Conventional multi-dimensional (nD) NMR experiments are characterized by inherent long acquisition durations, while ultrafast (UF) NMR makes it possible to reduce to a few hundreds of milliseconds the overall acquisition duration of a complete nD NMR dataset. Although extremely promising for a number of specific applications, the UF strategy suffers from significant limitations compared with its conventional counterpart. The main limitations concern the sensitivity, the resolution, and the accessible spectral width. However, when the targeted applications are compatible with an acquisition duration between a few seconds and a few minutes, hybrid UF techniques can be used to improve the performance of UF nD NMR while remaining faster than conventional acquisitions. Much better results in terms of signal-to-noise ratio can be achieved with the multi-scan single-shot approach or with interleaved acquisitions. Even more, for the same experimental duration, and in the case of homonuclear 2D NMR, the multi-scan single-shot approach has a much higher precision than conventional 2D NMR. Interleaved 2D NMR overcomes the drawbacks of single-scan UF NMR in terms of spectral width and provides spectra for which the quality is not significantly different from that obtained with conventional 2D NMR. Finally, high spectral qualities have been demonstrated from hybrid conventional/UF 3D approaches capable of recording a whole 3D spectrum in the time needed to record a conventional 2D spectrum. This mini-review aims at describing the principles, the recent advances and the latest applications of these hybrid techniques. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: Higher Dimensionalitymentioning

confidence: 99%