title: Novel PTM-TEMPO biradical for fast dissolution dynamic nuclear polarization.
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.
authors.affiliation: Institut de Ciència de Materials de Barcelona ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Barcelona, Spain.
authors.forename: Jose-Luis
authors.initials: JL
authors.lastname: Muñoz-Gómez
authors.forename: Ildefonso
authors.initials: I
authors.lastname: Marín-Montesinos
authors.forename: Vega
authors.initials: V
authors.lastname: Lloveras
authors.forename: Miquel
authors.initials: M
authors.lastname: Pons
authors.forename: José
authors.initials: J
authors.lastname: Vidal-Gancedo
authors.forename: Jaume
authors.initials: J
authors.lastname: Veciana