High-resolution ¹³C DNP NMR and ¹³C knight shift suppression in single crystals of the organic conductor (fluoranthenyl)₂PF₆

Abstract

We report a 13C DNP NMR study of the organic conductor fluoranthenyl (FA) radical cation salt (FA)2+PF6-. We have been able to suppress the Knight shift by saturating the ESR line. Overhauser enhancements achieved were large enough to detect 1016 carbons after 1 s of microwave saturation. © 1987.