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Kiraly, Peter; Foroozandeh, Mohammadali; Nilsson, Mathias; Morris, Gareth A., E-mail: g.a.morris@manchester.ac.uk2017
AbstractAbstract
[en] Highlights: • Clean determination of homonuclear couplings. • Pure shift acquisition delivers pure absorption 2D lineshapes. • Zero quantum coherence suppression filters out artefacts. Analysis of proton NMR spectra has been a key tool in structure determination for over 60 years. A classic tool is 2D J-spectroscopy, but common problems are the difficulty of obtaining the absorption mode lineshapes needed for accurate results, and the need for a 45° shear of the final 2D spectrum. A novel 2D NMR method is reported here that allows straightforward determination of homonuclear couplings, using a modified version of the PSYCHE method to suppress couplings in the direct dimension. The method illustrates the need for care when combining pure shift data acquisition with multiple pulse methods.
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S0009261417300441; Available from http://dx.doi.org/10.1016/j.cplett.2017.01.031; Copyright (c) 2017 Elsevier B.V. All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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