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13C Hyperpolarization of Viscous Liquids by Transfer of Solid-Effect 1H Dynamic Nuclear Polarization at High Magnetic Field Full article

Journal The Journal of Physical Chemistry Letters
ISSN: 1948-7185
Output data Year: 2023, Volume: 14, Number: 31, Pages: 7059-7064 Pages count : 6 DOI: 10.1021/acs.jpclett.3c01732
Tags Liquids, Magnetic properties, Nuclear spin, Polarization, Quantum mechanics
Authors Dai Danhua 1 , Denysenkov Vasyl 1 , Bagryanskaya Elena G. 2 , Tormyshev Victor M. 2 , Prisner Thomas F. 1 , Kuzhelev Andrei A. 1
Affiliations
1 Goethe University Frankfurt
2 N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of Siberian Branch of Russian Academy of Sciences

Abstract: Dynamic nuclear polarization (DNP) is routinely used as a method for increasing the sensitivity to nuclear magnetic resonance (NMR). Recently, high-field solid-effect DNP in viscous liquids on 1H nuclei was demonstrated using narrow-line polarizing agents. Here we expand the applicability of DNP in viscous media to 13C nuclei. To hyperpolarize 13C nuclei, we combined solid-effect 1H DNP with a subsequent transfer of the 1H polarization to 13C via insensitive nuclei enhanced by polarization transfer (INEPT). We demonstrate this approach using a triarylmethyl radical as a polarizing agent and glycerol-13C3 as an analyte. We achieved 13C enhancement factors of up to 45 at a magnetic field of 9.4 T and room temperature.
Cite: Dai D. , Denysenkov V. , Bagryanskaya E.G. , Tormyshev V.M. , Prisner T.F. , Kuzhelev A.A.
13C Hyperpolarization of Viscous Liquids by Transfer of Solid-Effect 1H Dynamic Nuclear Polarization at High Magnetic Field
The Journal of Physical Chemistry Letters. 2023. V.14. N31. P.7059-7064. DOI: 10.1021/acs.jpclett.3c01732 WOS Scopus РИНЦ
Dates:
Submitted: Jun 25, 2023
Accepted: Jul 28, 2023
Published print: Aug 1, 2023
Published online: Aug 10, 2023
Identifiers:
Web of science WOS:001039025100001
Scopus 2-s2.0-85167798269
Elibrary 63600483
OpenAlex W4385442600
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