A combination of 19F nuclear Overhauser effects (NOE) and molecular mechanics calculations are presented for delineating the spatial origin of the well-known four-bond 19F-19F COSY connections which are generally observed in the 19F NMR spectra of compounds containing perfluorinated chains. Perfluorooctanoic acid (PFOA), RF-palmitic acid-F13 and diethyl perfluorosuberate were used as test cases. Spin-lattice relaxation times (T1) are included and NOESY correlations through three and four bonds occur. Copyright

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Keywords 19F NMR, COSY, Fluorinated acid derivatives, NMR, NOE, Relaxation times
Persistent URL dx.doi.org/10.1002/mrc.1595
Journal Magnetic Resonance in Chemistry
Buchanan, G.W, Munteanu, E. (Elena), Dawson, B.A. (Brian A.), & Hodgson, D. (Derek). (2005). Concerning the origin of 19F-19F NMR COSY and NOESY connections in the spectra of perfluorooctanoic acid, RF-palmitic acid-F13 and diethyl perfluorosuberate. Magnetic Resonance in Chemistry, 43(7), 528–534. doi:10.1002/mrc.1595