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Synthesis and fluorescence of push-pull substituted diphenylamino-diphenyldistyrylbenzenes

Authors: Teichmanová Kateřina | Imramovský Aleš | Pauk Karel | Chernenko Daria | Vala Martin | Luňák Stanislav

Year: 2023

Type of publication: ostatní - přednáška nebo poster

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
eng	Synthesis and fluorescence of push-pull substituted diphenylamino-diphenyldistyrylbenzenes	In last decades, there has been considerable interest in research on solid-state emitters exhibiting emission in the far red or near-infrared spectral region due to their significant impact on diverse fields of technology. Solid-state fluorescence (SSF) has been studied typically on single crystals, thin layers, or polycrystalline powders. The progress has triggered the creation of novel photoluminescent materials, so that photophysical phenomena, which were of rather academic interest in the past, find now real-world applications, such as single-crystal emission in organic light-emitting diodes, lasing, or optical storage. Understanding of crystal packing modes and intermolecular interactions are challenges of crystal engineering which is crucial for fluorescent properties. Researchers have paid attention to derivatives based on the same building block with fluorescent maxima tuned by a variety of simple substituents. Stilbene and 1,4-distyrylbenzene bear remarkable optical, photochemical and photophysical properties. They have widespread applications in many fields ranging from fine chemistry and materials science to biomedicine. Two novel diphenyl-distyrylbenzenes with triphenylamine donor group were synthesized and studied for their high fluorescence in solution as well as in the solid phase. Desired molecules were prepared successfully under Horner–Wadsworth–Emmons conditions and after several crystallizations we were able to achieve excellent quality material. The optical behavior was studied in solid state and in various organic solvents by UV/Vis and emission spectroscopy. In conclusion, all prepared compounds promise to be attractive topic for further investigation and application in field of optoelectronic devices.	Diphenylamino-diphenyldistyrylbenzenes; Horner-Wadsworth-Emmons conditions; UV/Vis; emission spectroscopy