"Estudio del efecto solvatocrómico en derivados fenólicos naturales"

ROMERO ALE E., OLIVES A.I., MARTÍN L., DEL CASTILLO B., AGNESE A.M., ORTEGA M.G., NÚÑEZ MONTOYA S.C., CABRERA J. L.

ARS. PHARMACEUTICA

Facultad de Farmacia de Granada

Lugar: Granada; Año: 2002 vol. 43 p. 57 - 57

0004-2927

p style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt 54pt; mso-list: skip" class="MsoNormal">Abstract: The spectrofluorimetric behavior of two derivatives of quercetin isolated from the leaves of Flaveria bedentis, a derivative of 6-prenylpinocembrin isolated from the rotos of Dalea elegans and a anthraquinone derivative isolated from the leaves of Heterophyllaea pustulata, is described. The UV-visible absorption spectra of these compounds exhibit the maximum values corresponding to the chromophores present in each structure. All of the compounds studied show native fluorescence in different solvents. The maximum shift in fluorescence emission to the red spectral region when the polarity of the solvents is increased, can be attributed to varying degrees of solvation in the exci