| Autor: |
Salla, Cristian A. M., Farias, Giliandro, Sturm, Ludmilla, Dechambenoit, Pierre, Durola, Fabien, Murat, Aydemir, de Souza, Bernardo, Bock, Harald, Monkman, Andrew P., Bechtold, Ivan H. |
| Zdroj: |
Physical Chemistry Chemical Physics (PCCP); 1/7/2023, Vol. 25 Issue 1, p684-689, 6p |
| Abstrakt: |
Considering the relevance of room temperature phosphorescent (RTP) materials, we discuss the influence of donor and acceptor groups substituted on to a twisted three-fold symmetric hydrocarbon homotruxene, which presents a persistent RTP, even in the absence of donor or acceptor moieties, under ambient conditions as a result of the twisted π-system. Compared to a fluorine acceptor, a donor methoxy group increases the phosphorescence decay rate in solution, while in the solid-state, molecular aggregation and packing yield a very persistent phosphorescence visible by the eye. The RTP of the intrinsically apolar homotruxene is found to be modulated by polar substituents, whose main impact on the solid-state emission is due to altered packing in the crystal. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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