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A conformational study of hydroxylated isoflavones by vibrational spectroscopy ...
Machado, N. F. L.; Batista de Carvalho, L. A. E.; Otero, J. C.; Marques, M. P. M.The conformational preferences of a series of hydroxylated isoflavones were studied by optical vibrational spectroscopy (FTIR and Raman) coupled with density functional theory (DFT) calculations. Special attention was paid to the effect of the hydroxyl substitution, due to the importance of this group in the biological activity of these systems. The isoflavones investigated – daidzein, genistein and formononeti...
A conformational study of hydroxylated isoflavones by vibrational spectroscopy ...
Machado, N. F. L.; Carvalho, L. A. E. Batista de; Otero, J. C.; Marques, M. P. M.The conformational preferences of a series of hydroxylated isoflavones were studied by optical vibrational spectroscopy (FTIR and Raman) coupled with density functional theory (DFT) calculations. Special attention was paid to the effect of the hydroxyl substitution, due to the importance of this group in the biological activity of these systems. The isoflavones investigated – daidzein, genistein and formononeti...
Antioxidant phenolic esters with potential anticancer activity: solution equili...
Machado, N. F. L.; Calheiros, R.; Gaspar, A.; Garrido, J.; Borges, F.; Marques, M. P. M.The solution Raman pattern of a series of structurally related hydroxycinnamic and hydroxybenzoicesters (caffeates and gallates) with potential antioxidant/anticancer activity was studied, for different biologically significant concentrations. The spectra were assigned with the help of theoretical calculations in the light of previously reported experimental data for these compounds in the solid state. Evidence...
Antioxidant phenolic esters with potential anticancer activity: A Raman spectro...
Calheiros, R.; Machado, N. F. L.; Fiuza, S. M.; Gaspar, A.; Garrido, J.; Milhazes, N.; Borges, F.; Marques, M. P. M.A Raman study of hydroxycinnamic and hydroxybenzoic esters (caffeates, ferulates and gallates) displaying antioxidant and anticancer properties was undertaken, with particular emphasis on the analysis of the effect of the ring substituents and the nature of the ester alkyl chain on their spectroscopic features. A complete assignment of the spectra was carried out for all the compounds investigated, in the light...
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