## Abstract An analysis of the ^19^F n.m.r. spectra of heptafluoroisoquinoline and hexafluoro‐1‐methoxyisoquinoline is presented. As in heptafluoroquinoline, the inter‐ring FF coupling constants alternate in sign and magnitude and are positive over an odd number of bonds. They correlate with SCFMO
Long-range coupling constants and nuclear overhauser effects in the N.M.R. spectra of organo-thallium compounds
✍ Scribed by F.A.L Anet
- Publisher
- Elsevier Science
- Year
- 1964
- Tongue
- French
- Weight
- 233 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
Adducts of thallium (III) acetate to norbornene and norbornadiene have been prepared(') recently, and their structures studied (1) . However, the evidence available does not allow unequivocal assignments to the configurations of the T~(OAC)~ groups in these compounds.
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## 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
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