Fluorine-19 NMR spectroscopy of polyhalonaphthalenes. Part III. A consideration of inter-ring SCSs in polychloropolyfluoronaphthalenes
| Autor: | Raymond S. Matthews |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Stereochemistry
Chemical shift Organic Chemistry Substituent chemistry.chemical_element Fluorine-19 NMR Ring (chemistry) Biochemistry Inorganic Chemistry Part iii chemistry.chemical_compound chemistry Computational chemistry Fluorine Environmental Chemistry Physical and Theoretical Chemistry Spectroscopy |
| Zdroj: | Journal of Fluorine Chemistry. 55:163-167 |
| ISSN: | 0022-1139 |
| DOI: | 10.1016/s0022-1139(00)80117-7 |
| Popis: | Substituent chemical shifts for the hypothetical replacement of fluorine atoms by chlorineatoms are considered for the 19F shifts in a ‘matrix’ of data points from 21 compounds,from monochloroheptafluoro- to octafluoro-naphthalene. The use of inter-ring SCSs isinvestigated with an application to the heterologue, 2,4-dichloro-pentafluoroquinoline,where the 19F shift predictions prove accurate and acceptable. A caution is given againstusing small SCSs in isolation to elucidate structures and assign peaks in the 19F spectraof polyfluoropolycyclic aromatic compounds. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|