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. 2014 Oct 17;16(20):5402-5.
doi: 10.1021/ol502644x. Epub 2014 Oct 3.

Novel PTM-TEMPO biradical for fast dissolution dynamic nuclear polarization

Jose-Luis Muñoz-Gómez  1 , Ildefonso Marín-Montesinos, Vega Lloveras, Miquel Pons, José Vidal-Gancedo, Jaume Veciana
Affiliations

Novel PTM-TEMPO biradical for fast dissolution dynamic nuclear polarization

Jose-Luis Muñoz-Gómez et al. Org Lett. .

Abstract

The synthesis and characterization of a novel trityl-TEMPO biradical and the investigation of its properties as Dynamic Nuclear Polarization (DNP) polarizing agent are reported. Comparison with a structurally related monoradical (PTM-TEMPE) or mixtures of the two monoradical components reveals that the biradical has a much higher polarization efficiency and a faster polarization buildup. This offers the possibility of faster recycling further contributing to its efficiency as a polarizing agent.

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