## Abstract The ^19^F chemical shifts of a series of bridgehead fluorides are reported. It is found that, contrary to earlier conclusions based on a limited number of substrates, the fluorine shifts occur randomly.
The interpretation of some 19F chemical shifts
✍ Scribed by K.A.K. Ebraheem; G.A. Webb
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 521 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0022-2860
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract Sum‐over‐states perturbation and finite perturbation calculations, within the ‘Solvaton’ model, are presented for the variation of some ^17^O and ^19^F chemical shifts as a function of the dielectric constant of the medium. In general, the nuclear screening and charge are predicted to i
## Abstract The ^19^F NMR shieldings for several remotely substituted rigid polycyclic alkyl fluorides with common sets of substituents covering a wide range of electronic effects were calculated using the DFT‐GIAO theoretical model. The level of theory, B3LYP/6–311+G(2d,p), was chosen based on tri
## Abstract The signs and magnitudes of every fluorine–fluorine coupling constant in perfluoroquinoline (**1**), 2,4‐dichloropentafluoroquinoline (**2**) and 2‐bromohexafluoroquinoline (**3**) have been determined by ^19^F n.m.r. These provide an unambiguous assignment of the spectrum of the first