Combination of Homonuclear Decoupling and Spectral Aliasing to Increase the Resolution in the 1H Dimension of 2D NMR Experiments | Zendy

Axelle Cotte | Zendy; Mohammadali Foroozandeh | Zendy; Damien Jeannerat | Zendy

Open Access

Combination of Homonuclear Decoupling and Spectral Aliasing to Increase the Resolution in the 1H Dimension of 2D NMR Experiments

Author(s) -

Axelle Cotte,

Mohammadali Foroozandeh,

Damien Jeannerat

Publication year - 2012

Publication title -

chimia international journal for chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.387

H-Index - 55

eISSN - 2673-2424

pISSN - 0009-4293

DOI - 10.2533/chimia.2012.764

Subject(s) - homonuclear molecule , decoupling (probability) , spectral line , spectral resolution , aliasing , resolution (logic) , pulse sequence , nuclear magnetic resonance , dimension (graph theory) , chemistry , computational physics , physics , molecular physics , mathematics , molecule , computer science , quantum mechanics , filter (signal processing) , control engineering , artificial intelligence , engineering , pure mathematics , computer vision

Broadband homonuclear decoupling (BBHD) in the indirect (1)H dimension of 2D experiments can be obtained using a modified Zangger and Sterk combination of a selective pulse with a pulsed-field gradient. The coupling structure of signals is reduced to a singlet along the F1 dimension at the cost of a sensitivity loss. With the classical sampling in F1, the full resolving power of BBHD-experiments requires very long acquisition times. Spectral aliasing can reduce the number of time increments accessing the top resolution of homodecoupled spectra of small molecules by two orders of magnitude. The TOCSY spectra of androst-4-ene-3,17-dione are shown as an example.

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