Abstract: Highly stable trityl-nitroxide biradicals were synthesized, which are promising for the use as polarizing agents for dynamic nuclear polarization (DNP) in reducing environments, such as living cells. The EPR spectra of the biradicals were studied, parameters of hyperfine and exchange interactions were obtained, and the dipole—dipole interaction values were estimated using the results of conformational analysis. The reduction kinetics of the synthesized biradicals by ascorbic acid in a model medium were measured. Prospects for application of the biradicals for DNP in various magnetic fields based on the ratio of the exchange and dipole—dipole interactions are discussed.

Cite: Asanbaeva N.B. , Rogozhnikova O.Y. , Tormyshev V.M. , Morozov D.A. , Polienko Y.F. , Zhurko I.F. , Genaev A.M. , Bagryanskaya E.G.
Synthesis and EPR study of highly stable trityl-nitroxide biradicals
Russian Chemical Bulletin. 2023. V.72. N11. P.2677-2686. DOI: 10.1007/s11172-023-4072-y WOS Scopus РИНЦ

ArticleLinkType.TRANSLATED_TO_ORIGINAL: Асанбаева Н.Б. , Рогожникова О.Ю. , Тормышев В.М. , Морозов Д.А. , Полиенко Ю.Ф. , Журко И.Ф. , Генаев А.М. , Багрянская Е.Г.
Синтез высокостабильных тритил-нитроксильных бирадикалов и их исследование методом ЭПР
Известия Академии наук. Серия химическая.(RUSS CHEM B+). 2023. №11. С.2677. РИНЦ

Dates:

Published online:

Dec 29, 2023

Identifiers:

Web of science	WOS:001132088500002
Scopus	2-s2.0-85180714695
Elibrary	65532312
OpenAlex	W4390437202

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