title: NMR signal enhancement of >50 000 times in fast dissolution dynamic nuclear polarization.
abstract: Herein, we report the synthesis and the study of a novel mixed biradical with BDPA and TEMPO radical units that are covalently bound by an ester group (BDPAesterTEMPO) as a polarizing agent for fast dissolution DNP. The biradical exhibits an extremely high DNP NMR enhancement of >50 000 times, which constitutes one of the largest signal enhancements observed so far, to the best of our knowledge.
authors.affiliation: Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra, Spain. j.vidal@icmab.es and CIBER-BBN, Barcelona, Spain.
authors.forename: L F
authors.identifier: http://orcid.org/0000-0002-9772-2397
authors.initials: LF
authors.lastname: Pinto
authors.affiliation: Biomolecular NMR laboratory, Inorganic and Organic Chemistry Department, University of Barcelona, Baldiri Reixac 10-12, 08028, Barcelona, Spain.
authors.forename: I
authors.initials: I
authors.lastname: Marín-Montesinos
authors.affiliation: Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra, Spain. j.vidal@icmab.es and CIBER-BBN, Barcelona, Spain.
authors.forename: V
authors.initials: V
authors.lastname: Lloveras
authors.affiliation: Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra, Spain. j.vidal@icmab.es and CIBER-BBN, Barcelona, Spain.
authors.forename: J L
authors.initials: JL
authors.lastname: Muñoz-Gómez
authors.affiliation: Biomolecular NMR laboratory, Inorganic and Organic Chemistry Department, University of Barcelona, Baldiri Reixac 10-12, 08028, Barcelona, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Pons
authors.affiliation: Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra, Spain. j.vidal@icmab.es and CIBER-BBN, Barcelona, Spain.
authors.forename: J
authors.identifier: http://orcid.org/0000-0003-1023-9923
authors.initials: J
authors.lastname: Veciana
authors.affiliation: Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra, Spain. j.vidal@icmab.es and CIBER-BBN, Barcelona, Spain.
authors.forename: J
authors.identifier: http://orcid.org/0000-0002-1853-9675
authors.initials: J
authors.lastname: Vidal-Gancedo