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Far-infrared investigations and hydrogen bonding of pyridine N-oxides

โœ Scribed by S. Ghersetti; S. Giorgianni; P.L. Capucci; G. Spunta


Book ID
113373157
Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
370 KB
Volume
29
Category
Article
ISSN
1386-1425

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13C NMR spectra of substituted pyridine
โœ B. Brycki; B. Nowak-Wydra; M. Szafran ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 282 KB

Aromatic I3C chemical shifts of 4-and hubstituted pyridine N-oxides in aprotic and protic solvents are reported and discussed. Changes in chemical shifts caused by hydrogen bonding and protonation are much smaller than those induced by a substituent, and are not related to the pK, values of N-oxides