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A spectrophotometric study of the tautomeric and acid- base equilibria of methyl orange and methyl yellow in aqueous acidic solutions

โœ Scribed by Khalid M. Tawarah; Hakam M. Abu-Shamleh

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
662 KB
Volume
16
Category
Article
ISSN
0143-7208

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A solid state and solution NMR study of
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โœ Dietrich Gudat; Jacek E. Nycz; Jaroslaw Polanski ๐Ÿ“‚ Article ๐Ÿ“… 2008 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 156 KB ๐Ÿ‘ 1 views

Some hydroxyquinoline carboxylic acids and their conjugate acids and bases were characterized by 13 C and 15 N NMR spectroscopy in solution and in the solid state. Differences in 13 C and, in particular, 15 N chemical shift patterns allow to distinguish between individual tautomers and confirm the p