Authors:	Burueva, Dudari B. Eills, James Blanchard, John W. Garcon, Antoine Picazo-Frutos, Román Kovtunov, Kirill V. Koptyug, Igor V. Budker, Dmitry
Title:	Chemical reaction monitoring using zero-field nuclear magnetic resonance enables study of heterogeneous samples in metal containers
Online publication date:	3-Aug-2021
Year of first publication:	2020
Language:	english
Abstract:	We demonstrate that heterogeneous/biphasic chemical reactions can be monitored with high spectroscopic resolution using zero-field nuclear magnetic resonance spectroscopy. This is possible because magnetic susceptibility broadening is negligible at ultralow magnetic fields. We show the two-step hydrogenation of dimethyl acetylenedicarboxylate with para-enriched hydrogen gas in conventional glass NMR tubes, as well as in a titanium tube. The low frequency zero-field NMR signals ensure that there is no significant signal attenuation arising from shielding by the electrically conductive sample container. This method paves the way for in situ monitoring of reactions in complex heterogeneous multiphase systems and in reactors made of conductive materials while maintaining resolution and chemical specificity.
DDC:	530 Physik 530 Physics 540 Chemie 540 Chemistry and allied sciences
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik Helmholtz Institut Mainz
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-6231
Version:	Published version
Publication type:	Zeitschriftenaufsatz
License:	CC BY-NC
Information on rights of use:	https://creativecommons.org/licenses/by-nc/4.0/
Journal:	Angewandte Chemie 59 39
Pages or article number:	17026 17032
Publisher:	Wiley-VCH
Publisher place:	Weinheim
Issue date:	2020
ISSN:	1521-3773
Publisher URL:	https://doi.org/10.1002/anie.202006266
Publisher DOI:	10.1002/anie.202006266
Appears in collections:	JGU-Publikationen