A J-resolved 13C–19F {1H, 19F} Experiment with Broadband Fluorine Decoupling for the Characterization of Polyfluorinated Organic Compounds

Abstract We describe an approach to characterize polyfluorinated organic compounds via J-resolved 2D NMR. A shaped pulse was utilized to perform broadband decoupling of fluorine resonances with large chemical shifts, and the 13C–19F splitting patterns were visualized with proton decoupling. Through this, coupling constants ranging from single digits to as high as 274.0 Hz were easily visualized and displayed. Two organic compounds were analyzed with this technique and are discussed below.