Fabian Zechmeister (links) und Maximilian Raab (rechts) demonstrieren die Fluoreszenz einer Perylenbisimidlösung
Dye synthesis in nothing but water instead of toxic solvents - researchers at TU Wien develop a highly efficient and environmentally friendly synthesis for organic pigments. Fabian Zechmeister (left) and Maximilian Raab (right) demonstrate the fluorescence of a perylene bisimide solution Inside front cover of the current issue of Chemical Communications. Depicted is the general molecular structure of perylene bisimide dyes surrounded by water. (Image reproduced by permission of Miriam M. Unterlass from Chem. Commun. Perylene bisimides are a heavily investigated and sought after class of organic pigments, since they show interesting dye properties. While these compounds are red pigments in the solid state, when dissolved, they generate bright yellowish-green solutions under UV irradiation.
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