Gurinov Andrei, Sieland Benedikt, Kuzhelev Andrey, Elgabarty Hossam, Kühne Thomas D, Prisner Thomas, Paradies Jan, Baldus Marc, Ivanov Konstantin L, Pylaeva Svetlana
NMR Spectroscopy group, Bijvoet Center for Biomolecular Research, Utrecht University, Padualaan 8, 3584CH, Utrecht, The Netherlands.
Department of Chemistry, Paderborn University, Warburger Strasse 100, Paderborn, 33098, Germany.
Angew Chem Int Ed Engl. 2021 Jul 5;60(28):15371-15375. doi: 10.1002/anie.202103215. Epub 2021 Jun 7.
Herein, we investigate a novel set of polarizing agents-mixed-valence compounds-by theoretical and experimental methods and demonstrate their performance in high-field dynamic nuclear polarization (DNP) NMR experiments in the solid state. Mixed-valence compounds constitute a group of molecules in which molecular mobility persists even in solids. Consequently, such polarizing agents can be used to perform Overhauser-DNP experiments in the solid state, with favorable conditions for dynamic nuclear polarization formation at ultra-high magnetic fields.
在此，我们通过理论和实验方法研究了一组新型的极化剂——混合价化合物，并展示了它们在固态高场动态核极化（DNP）核磁共振实验中的性能。混合价化合物构成了一类分子，即使在固体中分子流动性依然存在。因此，这类极化剂可用于在固态中进行奥弗豪泽动态核极化实验，在超高磁场下具有形成动态核极化的有利条件。
