Aromatic monazines

Many molecules with pH-dependent fluorescence properties are known and used only in aqueous media, which essentially precludes them from resist applications. To be of use in resist applications, fluorescent molecules must be soluble in organic solvents of moderate polarity and also be compatible with polymer films.Aromatic monazines such as acridine have been known to be essentially nonfluorescent in non-hydrogen-bonding solvents, whereas their protonated forms are highly fluorescent in aqueous solutions, which makes this class of materials interesting candidates for potential acid sensors. ... 

Aromatic monazines like acridine have been known to be essentially nonfluorescent in non-hydrogen-bonding solvents, whereas their protonated forms are highly fluorescent in aqueous solutions, which makes this class of materials interesting candidates for potential acid sensors (5). 

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See also in sourсe #XX -- [ ]

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