Chemical Communications · 2020 · 23 citations · 36 references
Natural SciencesChemistryPhysicsNuclear ChemistryOrganic ChemistrySpectroscopyDynamic Nuclear PolarizationRadical ReactionsSolubility OptimizationAqueous Reaction MediaDynamic Nmr SpectroscopyNonpolar SolventsPersistencePolar Aprotic SolventsPolar Protic SolventsRadical Polarizing Agents
1,3-Bis(diphenylene)-2-phenylallyl (BDPA) radicals are promising polarizing agents for increasing the sensitivity of NMR spectroscopy through dynamic nuclear polarization (DNP), but have low persistence and solubility in aqueous media. New tetraalkyl/aryl-ammonium derivatives of BDPA are soluble in polar solvents and are highly persistent, with 5-20-fold lower initial rates of degradation than BDPA.
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High Frequency Dynamic Nuclear Polarization
Qing Zhe Ni, Eugenio Daviso, Thach V. Can et al. · Accounts of Chemical Research · 2013 · 613 citations
Natural Sciences, Chemistry, Physics +10