Syntheses and Structural Studies of Schiff Bases Involving Hydrogen Bonds

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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Bibliographic Details
Main Authors: José Elguero, Rosa M. Claramunt, Dionisia Sanz, Almudena Perona
Format: Article
Language:English
Published: MDPI AG 2006-06-01
Series:Molecules
Subjects:
Schiff bases
Tautomerism
Hydrogen bonds
NMR spectroscopy
Density functional calculations.
Online Access:http://www.mdpi.com/1420-3049/11/6/453/
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spelling 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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