Alkyloxy modified pyrene fluorophores with tunable photophysical and crystalline properties
Novel alkyloxy modified 2,7-di-tert-butyl-4,5,9,10-tetra(arylethynyl)pyrenes were prepared through a straightforward Sonogashira coupling approach. Optical properties such as quantum yields and absorption/emission spectra of the fluorophores were investigated by UV/Vis and fluorescence measurements. Aggregation induced excimer formation of the chromophores in polar solvents and in the solid state was proved by the presence of a characteristic bathochromically shifted emission band and a decrease of the emission capability. These results strongly indicate the unexpected observation that the excimer formation of adjacent pyrene rings is not prevented by the introduction of bulky tert-butyl su…
CCDC 1895646: Experimental Crystal Structure Determination
Related Article: Andreas Kapf, Hassan Eslahi, Meik Blanke, Marco Saccone, Michael Giese, Marcel Albrecht|2019|New J.Chem.|43|6361|doi:10.1039/C9NJ00652D
CCDC 1895645: Experimental Crystal Structure Determination
Related Article: Andreas Kapf, Hassan Eslahi, Meik Blanke, Marco Saccone, Michael Giese, Marcel Albrecht|2019|New J.Chem.|43|6361|doi:10.1039/C9NJ00652D