Repozytorium
Wyszukaj
Kolekcje
Inne
Tautomeric design of ortho-hydroxyheterocyclic Schiff bases.
Autorzy
Rok wydania
2015
Czasopismo
Journal of Molecular Structure
Numer woluminu
1080
Strony
52-56
DOI
10.1016/j.molstruc.2014.09.073
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The article reports on the synthesis and crystallographic and theoretical studies on various heterocyclic derivatives of ortho-hydroxy Schiff bases. The prevailing of one of the two (enolimine – OH and ketoamine – NH) tautomeric forms has been stated in studied compounds depending on the substitutes in heterocyclic formation, the nitrogen and carbon atoms of the imine group. A specific situation has been shown in (1E)-1-(5-chloro-2-hydroxy-3-nitrophenyl)ethanone oxime compound. The potentials on the proton transfer of the hydrogen bridges in these compounds have been found out. Grounded on the obtained potential curves the influence of the protonation on nitrogen in the pyridoxal derivative of the studied ortho-hydroxy Schiff bases has been analysed. The most efficient method of the impact (by means of various substitutes) on the intramolecular tautomeric equilibrium in ortho-hydroxy Schiff bases has been presented.
Słowa kluczowe
Tautomeric equilibrium, hydrogen bonding, Schiff-base, Pyridoxal and oxime
Adres publiczny
http://dx.doi.org/10.1016/j.molstruc.2014.09.073
Strona internetowa wydawcy
Podobne publikacje
Some brief notes on theoretical and experimental investigations of intramolecular hydrogen bonding.
Sobczyk Lucjan, Chudoba Dorota, Tolstoy Peter M., Filarowski Aleksander
Triple hydrogen bonding in a circular arrangement: ab initio, DFT and first-principles MD studies of tris-hydroxyaryl enamines.
Martyniak Agata, Panek Jarosław, Jezierska-Mazzarello Aneta, Filarowski Aleksander
Structural and aromatic aspects of tautomeric equilibrium in hydroxy aryl Schiff bases.
Filarowski Aleksander, Kochel Andrzej, Kluba Małgorzata, Kamounah F. S.