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The signs of the coupling constants between protons and fluorine nuclei in substituted benzenes

โœ Scribed by Ernest Lustig; David N. Lincoln; Victor Wray


Publisher
Elsevier Science
Year
1976
Weight
155 KB
Volume
21
Category
Article
ISSN
0022-2364

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๐Ÿ“œ SIMILAR VOLUMES


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โœ L. G. Vorontsova; A. F. Bochkov ๐Ÿ“‚ Article ๐Ÿ“… 1974 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 382 KB

## Abstract Conformationally rigid systems such as xylopyranose 1,2,4โ€ortho esters (**1a**) and (**1b**) and 10โ€methoxyโ€6โ€azaโ€isoadamantane (**2**), for which the identity of conformations both in the crystalline state and in solution can reasonably be assumed, provide good models for the study of

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The p-proton hypertine coupling constants in S-substituted ethyl radicals CH2-CH2-X (X=CHJ, NH2, OH, F, SiH9, PH2, SH, Cl) were computed as a function of the rotational angle (Y about the C.C, bond by ab initio calculations at the UHF/DZ+d level. They follow the relation aHg (0,a) =A+ B cos\*O + Cco