Zobrazeno 1 - 10
of 68
pro vyhledávání: '"F.H. Ferretti"'
Publikováno v:
Canadian Journal of Chemistry. 86:462-469
The apparent acidity constant of p-hydroxybenzophenone, which is a practically insoluble drug in water but of great pharmaceutical interest, was determined by reversed-phase high-performance liquid chromatography in organic solvent – water mixtures
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 68:387-393
The influence of temperature and solvent effects on the stability of the complex formed by two molecules of 1,2-dihydroxybenzene and one molecule of AlCl 3 were experimentally and theoretically studied, by means of UV spectroscopic methods and Densit
Autor:
S.E. Blanco, F.H. Ferretti
Publikováno v:
Tetrahedron Letters. 48:2577-2581
By applying the B3LYP/6-31G(d) method with the SCIPCM model on seven 4X substituted 2-hydroxybenzaldehydes, some structural characteristics related with their conformational equilibria and intramolecular hydrogen bonds have been clarified. The compou
Autor:
S.E. Blanco, F.H. Ferretti
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 722:197-202
With the specific aim of calculating the ionization constants of ammonia and methylamines in aqueous solution we investigated the molecular conformations and solute–solvent interactions of the bases and their corresponding conjugate acids, applying
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 61:93-102
In this paper we determine the overlapping pK(a) values of resorcinol in water, applying a UV-Vis spectroscopic method that uses absorbance diagrams. On the other hand, in order to explain the pK(a) values obtained, we also investigate the molecular
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 674:7-14
With the specific aim of explaining the dipole moment (DM) of resorcinol in water, we investigated the molecular conformations and solute–solvent interactions of resorcinol in ethanol, methanol and water. In this work, experimental dielectric proce
A theoretical and experimental study on the structure and dipole moment of phloroglucinol in ethanol
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 673:231-238
The dipole moment and structural properties of phloroglucinol in ethanol have been investigated using experimental dielectric procedures and theoretical ab initio and density functional methods. Applying Buckingham's method, it was determined that th
Publikováno v:
Journal of Colloid and Interface Science. 268:37-42
The role of citric acid in the demineralization of dental enamel, which is mainly constituted by hydroxyapatite, is important for periodontal regeneration and in the conditioning of enamel or dentin for bonding restorative resins. The adsorption of c
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 634:107-120
A theoretical and experimental study on the formation reaction of the complex between AlCl3 and 2-hydroxy-benzophenone in primary alcohols was performed. The influence of the temperature, the ionic strength and the solvent on the reaction rate were i
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 636:157-166
The varied biological activity of flavanones mainly depends on their physical and chemical properties. In order to obtain information on the acid–base behavior of flavanones of chemical and biological interest the isomerization of 4′-methoxy-flav