Title: On the calculation of fluorine-fluorine coupling constants in fluorinated propenes
Abstract: All the fluorine chemical shifts and the signs and magnitudes of the fluorine-fluorine coupling constants of perfluorotoluene have been determined. The most important finding is that the large four-bond fluorine-fluorine coupling constant between an ortho-fluorine nucleus and the perfluoromethyl nuclei is positive. This means, that despite theoretical predictions to the contrary, all known fluorine-fluorine coupling constants containing a large “through-space” contribution are positive.
Publication Year: 1974
Publication Date: 1974-05-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 4
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