Resumen:
font face="AdvPSA88B" size="1">
Abstract
The influence of pH on aggregate formation and changes in the structure of thionine monomers in solution has been determined.
Spectroscopic data (UVevis and 1H NMR) revealed that a free base form of the dye is formed at basic pH values, which displays highly
hydrophobic behavior. The cationic monomeric form can be photoreduced in both organic and aqueous solution, while the free base form
did not show any photoactivity in such media.
hydrophobic behavior. The cationic monomeric form can be photoreduced in both organic and aqueous solution, while the free base form
did not show any photoactivity in such media.