Charge-transfer interactions in some 2-, 3-, 4-substituted N-methylpyridinium iodides and tri-iodides

N-Methyl chemical shifts in some 2-, 3-

N-Methyl chemical shifts in some 2-, 3- and 4-substituted N-methylpyridinium salts

✍ L. W. Deady; G. D. Willett 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 English ⚖ 200 KB

## Abstract The chemical shifts of the __N__‐methyl group in a series of 2‐, 3‐ and 4‐substituted __N__‐methylpyridinium salts have been measured in DMSO solution. The shift is primarily affected by resonance interaction between the substituent and aza group, and the results suggest that the resona