The University of Southampton
University of Southampton Institutional Repository

Polarization transfer via field sweeping in parahydrogen-enhanced nuclear magnetic resonance

Polarization transfer via field sweeping in parahydrogen-enhanced nuclear magnetic resonance
Polarization transfer via field sweeping in parahydrogen-enhanced nuclear magnetic resonance
We show that in a spin system of two magnetically inequivalent protons coupled to a heteronucleus such as 13C, an adiabatic magnetic field sweep, passing through zero field, transfers the proton singlet order into magnetization of the coupled heteronucleus. This effect is potentially useful in parahydrogen-enhanced nuclear magnetic resonance and is demonstrated on singlet-hyperpolarized [1-13C]maleic acid, which is prepared via the reaction between [1-13C]acetylene dicarboxylic acid and para-enriched hydrogen gas. The magnetic field sweeps are of microtesla amplitudes and have durations on the order of seconds. We show a polarization enhancement by a factor of 104 in the 13C spectra of [1-13C]maleic acid in a 1.4 T magnetic field.
0021-9606
1-9
Eills, James
23130b21-68fa-4c8b-9399-e55f2e71ef36
Blanchard, John W.
3bb7de6e-f147-4527-9b1c-fbf8cb138f47
Wu, Teng
4237d6c7-56fd-41e6-9a9f-2c95e7d25c2e
Bengs, Christian
6d086f95-d3e8-4adc-86a5-6b255aee4dd1
Hollenbach, Julia
fc4aaccb-7f5b-407c-870d-a6fd9f4ed4af
Budker, Dmitry
2d8147c6-82b8-4e9a-8871-cb0d49b9cbea
Levitt, Malcolm H.
bcc5a80a-e5c5-4e0e-9a9a-249d036747c3
Eills, James
23130b21-68fa-4c8b-9399-e55f2e71ef36
Blanchard, John W.
3bb7de6e-f147-4527-9b1c-fbf8cb138f47
Wu, Teng
4237d6c7-56fd-41e6-9a9f-2c95e7d25c2e
Bengs, Christian
6d086f95-d3e8-4adc-86a5-6b255aee4dd1
Hollenbach, Julia
fc4aaccb-7f5b-407c-870d-a6fd9f4ed4af
Budker, Dmitry
2d8147c6-82b8-4e9a-8871-cb0d49b9cbea
Levitt, Malcolm H.
bcc5a80a-e5c5-4e0e-9a9a-249d036747c3

Eills, James, Blanchard, John W., Wu, Teng, Bengs, Christian, Hollenbach, Julia, Budker, Dmitry and Levitt, Malcolm H. (2019) Polarization transfer via field sweeping in parahydrogen-enhanced nuclear magnetic resonance. The Journal of Chemical Physics, 150 (17), 1-9, [174202]. (doi:10.1063/1.5089486).

Record type: Article

Abstract

We show that in a spin system of two magnetically inequivalent protons coupled to a heteronucleus such as 13C, an adiabatic magnetic field sweep, passing through zero field, transfers the proton singlet order into magnetization of the coupled heteronucleus. This effect is potentially useful in parahydrogen-enhanced nuclear magnetic resonance and is demonstrated on singlet-hyperpolarized [1-13C]maleic acid, which is prepared via the reaction between [1-13C]acetylene dicarboxylic acid and para-enriched hydrogen gas. The magnetic field sweeps are of microtesla amplitudes and have durations on the order of seconds. We show a polarization enhancement by a factor of 104 in the 13C spectra of [1-13C]maleic acid in a 1.4 T magnetic field.

Text
JE_sweep_JCP - Accepted Manuscript
Download (10MB)

More information

Accepted/In Press date: 12 April 2019
e-pub ahead of print date: 7 May 2019
Published date: 7 May 2019

Identifiers

Local EPrints ID: 430974
URI: http://eprints.soton.ac.uk/id/eprint/430974
ISSN: 0021-9606
PURE UUID: 3abb9e0b-982c-4357-b751-409b63e731c9
ORCID for Malcolm H. Levitt: ORCID iD orcid.org/0000-0001-9878-1180

Catalogue record

Date deposited: 20 May 2019 16:30
Last modified: 18 Feb 2021 16:56

Export record

Altmetrics

Contributors

Author: James Eills
Author: John W. Blanchard
Author: Teng Wu
Author: Christian Bengs
Author: Julia Hollenbach
Author: Dmitry Budker

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×