Solvatochromism of new substituted 4-[(E)-(4-nitrophenyl)diazenyl]phenolate dyes
作者:Carlos E.A. de Melo、Celso R. Nicoleti、Leandro G. Nandi、Felipe S.S. Schneider、Robson da S. Oliboni、Giovanni F. Caramori、Vanderlei G. Machado
DOI:10.1016/j.molliq.2019.112330
日期:2020.3
the behavior verified with relateddyes presenting CHCH or CHN as the conjugated bridge; however, the azodyes are much less sensitive to solvent polarity changes. Multiparametric analysis showed that the azodyes are very sensitive to the acidity of the medium, but still to a lesser degree than the corresponding imine and stilbene dyes, due to the electronegativity of the azo group. The reverse solvatochromism