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The use of a biradical, in an optimized glassy matrix allowed to dramatically promote polarization of 19F nuclei and record corresponding solid state NMR spectra of analytes of interest much faster (up to 600 times) than before.
19F Magic Angle Spinning Dynamic Nuclear Polarization Enhanced NMR Spectroscopy.
J. Viger‐Gravel, C. E. Avalos, D. J. Kubicki, D. Gajan, M. Lelli, O. Ouari, A. Lesage, L. Emsley, Angew. Chem. Int. Ed. 2019, 58, 7249–7253. DOI : 10.1002/anie.201814416