Abstract
The effect of N-oxidation of a series of polychloropyridines on13C NMR parameters has been studied. It has been established that in N-oxides of polychloropyridines an electric field through-space effect of the N-oxide group predominates in the shielding of the γ-carbon atom compared to the other carbon atoms. A linear correlation between13C NMR chemical shifts and total charge densities calculated by the MNDO method for the carbon atoms of N-oxides of polychloropyridines has been found.
Original language | English (US) |
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Pages (from-to) | 2319-2322 |
Number of pages | 4 |
Journal | Russian Chemical Bulletin |
Volume | 44 |
Issue number | 12 |
DOIs | |
State | Published - Dec 1995 |
Externally published | Yes |
Keywords
- C NMR
- C-H NMR coupling constants
- MNDO method
- N-oxides of polychloropyridines
ASJC Scopus subject areas
- General Chemistry