The signs of the coupling constants between protons and fluorine nuclei in substituted benzenes
โ Scribed by Ernest Lustig; David N. Lincoln; Victor Wray
- Publisher
- Elsevier Science
- Year
- 1976
- Weight
- 155 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0022-2364
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Abstract Conformationally rigid systems such as xylopyranose 1,2,4โortho esters (**1a**) and (**1b**) and 10โmethoxyโ6โazaโisoadamantane (**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
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