Pure shift (G.A. Morris/M. Nilsson)

From NMR Wiki

Basic facts about JA_ZS_demo

Synopsis: Pure shift 1D pulse sequence

Code authors:  Gareth A. Morris,  Juan Aguilar,  Mathias Nilsson

Copyright: Manchester University

The sequence

NB! The sequence is only a schematic. Please refer to the paper for full details.

Details

Varian pulse sequence, macros, selective pulse RF waveform and sample data for a simple 1D pure shift experiment[1]. Produces a 1H spectrum in which the effects of all couplings between protons are suppressed, provided the protons are separated by more than the bandwidth of the selective pulse. Experiment and results are described in Angew. Chemie Int. Ed. 2010, 49, 3901 (DOI: 10.1002/anie.201001107) and in Chem. Commun.207, 933-935.

Please note that this is development code. There may be incompatibilities with certain versions of Vnmr and VnmrJ. The DOSY Toolbox accommodates for both pureshift and Pure shift OneShot pulse sequence for Varian (G.A. Morris/M. Nilsson) data.

Description of download files

• JA_ZS_demo.c - pulse sequence
• pureshiftZScalixarene.fid - sample data set, including parameters
• JA_rsnob_30_0_0.5_0_180.RF - RF waveform for 30 Hz bandwidth selective refocusing pulse
• pureshiftZS_proc - macro to create pure shift fid and spectrum from raw experimental data
• unpureshift - macro to revert to previous data

References

1. Aguilar, JA and Faulkner, S and Nilsson, M and Morris, GA. Pure Shift 1H NMR: A Resolution of the Resolution Problem?. Angewandte Chemie 122(23):3993--3995, 2010. BibTeX [pureshift-1d]

2. Nilsson, M and Morris, GA. Pure shift proton DOSY: diffusion-ordered 1 H spectra without multiplet structure. Chemical Communications 2007(9):933--935, 2007. BibTeX [pureshift-dosy]