Analyse des Effets de Substituant du Noyau Benzenique EN RMN du Fluor: Application aux Fluoro-2 Alcools Phenylethyliques
✍ Scribed by G. Aranda; H. de Luze
- Publisher
- John Wiley and Sons
- Year
- 1972
- Tongue
- English
- Weight
- 573 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Fluorine magnetic resonance shifts are reported for substituted Iand 2-phenyl-fluoroethanols. They have been extrapolated at infinite dilution in solute and internal standard. The linear or other type correlations between these chemical shifts and substituent constants 0 lead us to discuss the validity of linear free energy relationships extended to NMR data. The limits and possibilities of such relationships are emphasised.
Rbum6-Les dkplacements chimiques du flnor de differents phCnyls-1 et 2 fluoro Cthanols ont etC mesures; les valeurs obtenues ont ete extrapolees h dilution infinie en solute et rtference interne. Les correlations lineaires ou non, obtenues entre ces dkplacements chimiques et les constantes de substituant 0 donnent lieu i une discussion gCnCrale relative A la validite des relations d'enthalpie libre &endues aux donnees de la RMN; les limites et les possibilites de telles relations sont precisees.