✦ LIBER ✦
Polyhaloheterocyclic compounds. Part XXXI—carbon-13 NMR spectra as a structural probe for polychloroaromatic compounds
✍ Scribed by Richard D. Chambers; Raymond S. Matthews; W. Kenneth; R. Musgrave; Peter G. Urben
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 347 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
Carbon‐13 spectra of twelve chlorofluoropyridines (C~5~CI~n~F~5−n~N), of known structure, have been assigned and an assessment has been made of the degree of additivity of substituent chemical shifts (SCS). Reasonable additivity is observed for pyridine derivatives but little regulatiry can be inferred from the spectra of perchlorinated‐diazines and ‐triazines. There is an approximately linear relationship between ^13^C and ^19^F chemical shifts.