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Signs of 19F1H and 19F13C spin–spin coupling constants mainly transmitted through space

✍ Scribed by I. D. Rae; J. A. Weigold; R. H. Contreras; G. Yamamoto

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
397 KB
Volume
30
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The details of two‐dimensional ^13^C^1^H correlated spectra have provided information about the relative signs of J(C, F) and J(F, H) for several molecules in which C, F and H are mutually coupled. Unlike signs are found for J(C, F) and J(F, H) when the coupling pathways lie approximately in the plane, but serious deviations from planarity can bring about changes in sign of J(F, H) and J(C, F).

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