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Evidence for a single minimum potential for hydrogen bonds of pyridine N-oxide complexes with dichloroacetic acid in dichloromethane

✍ Scribed by Zofia Dega-Szafran; Monika Grundwald-Wyspiańska; Mirosław Szafran


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
464 KB
Volume
47
Category
Article
ISSN
1386-1425

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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