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LONG-RANGE COUPLING CONSTANTS IN THE N.M.R. SPECTRA OF OLEFINES

✍ Scribed by Fraser, Robert R.

Book ID
120408594
Publisher
NRC Research Press
Year
1960
Tongue
French
Weight
236 KB
Volume
38
Category
Article
ISSN
0008-4042

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📜 SIMILAR VOLUMES

Long-range coupling constants and nuclea
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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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✍ R. S. Matthews 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 English ⚖ 382 KB

## 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 FF coupling constants alternate in sign and magnitude and are positive over an odd number of bonds. They correlate with SCFMO

19F n.m.r. spectrum of hexafluoroquinazo
19F n.m.r. spectrum of hexafluoroquinazoline long-range inter-ring FF coupling constants
✍ R. S. Matthews 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 400 KB

## Abstract The ^19^F n.m.r. spectrum of hexafluoroquinazoline has been analyzed giving the signs and magnitudes of all but two of the coupling constants, and supporting the analyses of the ^19^F n.m.r. spectra of heptafluoroquinoline and heptafluoroisoquinoline. Long range FF inter‐ring coupling

19F n.m.r spectra of polyfluoroquinoline
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✍ R. S. Matthews 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 English ⚖ 509 KB

## 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