## Abstract Carbon‐13 chemical shifts for __N__‐benzylidenebenzylamines are affected by substituents up to eleven bonds away from the substituent group. The data correlate well with Hammett constants.
Intrinsic carbon-13 NMR solvent shifts in hydrocarbons. Relevance of long range substituent parameters
✍ Scribed by A. R. N. Wilson; L. J. M. van de Ven; J. W. de Haan
- Publisher
- John Wiley and Sons
- Year
- 1974
- Tongue
- English
- Weight
- 227 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
Carbon‐13 NMR chemical shifts have been measured in a number of binary mixtures of normal alkanes. Intrinsic solvent shifts are deduced from the shifts and the relevance of some small substituent effects in alkanes is discussed. A comparison is made between solvent effects and thermally induced chemical shift differences in alkanes.
📜 SIMILAR VOLUMES
A reverse __ortho__ effect is observed for the ^13^ C NMR chemical shifts of the carboxyl carbon (__δ__~co~) in benzoic acids measured in aprotic solvents of varying polarity. The __ortho__ effect on __δ__~co~ is best described by a combination of the reverse field and steric accelerating effects of