Communication pubs.acs.org/JACS
Water-Soluble Narrow-Line Radicals for Dynamic Nuclear Polarization Olesya Haze,† Björn Corzilius,†,‡ Albert A. Smith,†,‡ Robert G. Griffin,*,†,‡ and Timothy M. Swager*,† †
Department of Chemistry and ‡Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States S Supporting Information *
ABSTRACT: The synthesis of air-stable, highly watersoluble organic radicals containing a 1,3-bis(diphenylene)2-phenylallyl (BDPA) core is reported. A sulfonated derivative, SA-BDPA, retains the narrow electron paramagnetic resonance linewidth (