## Abstract Eleven substituted 2‐diethylaminomethylphenol __N__‐oxides were studied in CDCl~3~ solutions by ^1^H and ^13^C NMR spectroscopy. The ^1^H chemical shifts of the intramolecular hydrogen‐bonded proton and the Δ~14~ values obtained from the ^13^C signals were considered as a function of th
Intramolecular hydrogen bonds with large proton polarizability in semisalts of mono- and di-N-oxides of N,N′-tetraalkyl-o-xylyldiamines
✍ Scribed by Bogumil Brzezinski; Georg Zundel
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 496 KB
- Volume
- 118
- Category
- Article
- ISSN
- 0022-2860
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## Synopsis The nature of hydrogen bonds formed between carboxylic acid residues and histidine residues in proteins is studied by ir spectroscopy. Poly(g1utamic acid) [(Glu),] is investigated with various monomer N bases. The position of the proton transfer equilibrium OH-N + O--H+N is determined
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