Gareth A. Morris

TL;DR: Mixture analysis using PFG‐NMR (DOSY) data is, for many chemists, a valuable and increasingly popular technique where the NMR signals of different species are separated according to their diffusion coefficients.

TL;DR: In this article, a modified version of the PSYCHE method was used to suppress couplings in the direct dimension, which allows straightforward determination of homonuclear couplings, and illustrates the need for care when combining pure shift data acquisition with multiple pulse methods.

TL;DR: NMR measurements of diffusion in solution, whether primarily quantitative, or, (as in DOSY, Diffusion-Ordered Spectroscopy) qualitative, can be particularly demanding, and the use of appropriate transverse (x, y) pulsed field gradients, orthogonal to the more usual z axis pulsing field gradient applied along the long axis of the sample, can greatly reduce two important sources of systematic error in diffusion experiments.

TL;DR: In this article, the utility of pure shift techniques in revealing heteronuclear couplings in complex 1H NMR spectra was investigated, and it was shown that the technique is a robust and valuable complement to the standard 1H spectrum.

TL;DR: A new family of NMR experiments for mixture analysis (Relaxation-Encoded Selective TOCSY, REST) allows the extraction of component subspectra from mixtures using isotropic mixing to label whole spin systems with the relaxation times.