A quantitative comparison of spectroscopic and energy data, in solution, of NHO and OHO hydrogen bonds and gas-phase proton affinities: complexes of pyridines and pyridine N-oxides with acetic acids

Nitrogen-15 NMR studies of hydrogen bond

Nitrogen-15 NMR studies of hydrogen bonding and proton transfer in complexes of pyridine N-oxides with dichloroacetic acid in CDCl3

✍ Zofia Dega-Szafran; Mirosław Szafran; Jerzy Sitkowski; Lech Stefaniak 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 387 KB 👁 2 views

The "N NMR chemical shifts of eight substituted pyridine N-oxides (B) and their complexes (AHB) with methanol and dichloroacetic and trifluoromethanesulfonic acids were measured in chloroform-d at the natural abundance level. The measured chemical shifts are strongly affected by substituents, hydrog