Реферат: 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.

Библиографическая ссылка: 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

Даты:

Поступила в редакцию:	25 июн. 2023 г.
Принята к публикации:	28 июл. 2023 г.
Опубликована в печати:	1 авг. 2023 г.
Опубликована online:	10 авг. 2023 г.

Идентификаторы:

Web of science	WOS:001039025100001
Scopus	2-s2.0-85167798269
РИНЦ	63600483
OpenAlex	W4385442600

Альметрики: