University of Ottawa NMR Facility Web Site

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Wednesday, October 24, 2007

Measurement of 13C-19F Coupling in a 1H-13C HMBC

It is often difficult to find the 13C signals in fluorinated organics by direct 13C observation. It may sometimes be easier to find these signals by way of a 1H-13C HMBC spectrum if there are nearby protons in the molecule. As shown below, it is even possible to measure the 13C-19F coupling constants.


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