Syntheses and Structural Studies of Schiff Bases Involving Hydrogen Bonds
New Schiff bases have been prepared by reacting 3-hydroxy-4-pyridine- carboxaldehyde with various amines. NMR spectroscopic methods provided clear evidence that the Schiff bases exist in the solid state and in solution as hydroxyimino tautomers with the E-configuration. A study of the stabilities of...
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2006-06-01
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Online Access: | http://www.mdpi.com/1420-3049/11/6/453/ |
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doaj-bb109748af5b483dacfd9d75317206fc2020-11-25T01:29:09ZengMDPI AGMolecules1420-30492006-06-0111645346310.3390/11060453Syntheses and Structural Studies of Schiff Bases Involving Hydrogen BondsJosé ElgueroRosa M. ClaramuntDionisia SanzAlmudena PeronaNew Schiff bases have been prepared by reacting 3-hydroxy-4-pyridine- carboxaldehyde with various amines. NMR spectroscopic methods provided clear evidence that the Schiff bases exist in the solid state and in solution as hydroxyimino tautomers with the E-configuration. A study of the stabilities of the tautomeric forms and the different conformers has been carried out using density functional calculations at the B3LYP/6-31G** level.http://www.mdpi.com/1420-3049/11/6/453/Schiff basesTautomerismHydrogen bondsNMR spectroscopyDensity functional calculations. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
José Elguero Rosa M. Claramunt Dionisia Sanz Almudena Perona |
spellingShingle |
José Elguero Rosa M. Claramunt Dionisia Sanz Almudena Perona Syntheses and Structural Studies of Schiff Bases Involving Hydrogen Bonds Molecules Schiff bases Tautomerism Hydrogen bonds NMR spectroscopy Density functional calculations. |
author_facet |
José Elguero Rosa M. Claramunt Dionisia Sanz Almudena Perona |
author_sort |
José Elguero |
title |
Syntheses and Structural Studies of Schiff Bases Involving Hydrogen Bonds |
title_short |
Syntheses and Structural Studies of Schiff Bases Involving Hydrogen Bonds |
title_full |
Syntheses and Structural Studies of Schiff Bases Involving Hydrogen Bonds |
title_fullStr |
Syntheses and Structural Studies of Schiff Bases Involving Hydrogen Bonds |
title_full_unstemmed |
Syntheses and Structural Studies of Schiff Bases Involving Hydrogen Bonds |
title_sort |
syntheses and structural studies of schiff bases involving hydrogen bonds |
publisher |
MDPI AG |
series |
Molecules |
issn |
1420-3049 |
publishDate |
2006-06-01 |
description |
New Schiff bases have been prepared by reacting 3-hydroxy-4-pyridine- carboxaldehyde with various amines. NMR spectroscopic methods provided clear evidence that the Schiff bases exist in the solid state and in solution as hydroxyimino tautomers with the E-configuration. A study of the stabilities of the tautomeric forms and the different conformers has been carried out using density functional calculations at the B3LYP/6-31G** level. |
topic |
Schiff bases Tautomerism Hydrogen bonds NMR spectroscopy Density functional calculations. |
url |
http://www.mdpi.com/1420-3049/11/6/453/ |
work_keys_str_mv |
AT josaƒaelguero synthesesandstructuralstudiesofschiffbasesinvolvinghydrogenbonds AT rosamclaramunt synthesesandstructuralstudiesofschiffbasesinvolvinghydrogenbonds AT dionisiasanz synthesesandstructuralstudiesofschiffbasesinvolvinghydrogenbonds AT almudenaperona synthesesandstructuralstudiesofschiffbasesinvolvinghydrogenbonds |
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