Topological and packing mode modification for solid-state emission enhancement of bis(perfluorostyryl)furan derivatives.

Autor: Faurie, Alexandre, Mallet, Charlotte, Allain, Magali, Skene, W. G., Frère, Pierre
Předmět:
Zdroj: New Journal of Chemistry; Aug2016, Vol. 40 Issue 8, p6728-6734, 7p
Abstrakt: An unsymmetric bis(perfluorostyryl)furan with a cyanovinyl unit was prepared (F1). Its crystallographic structure was resolved along with its cyano vinylene (1) and unsubstituted (2) aldehyde precursors. F1 was found to form ribbons involving C–H…F interactions, while also having multiple intermolecular contacts, including C–F…Fπ and π–π interactions. These contacts also occurred when F1 aggregated in 9 : 1 water/THF mixtures. When the supramolecular contacts are engaged, the emission intensity of F1 increases, with absolute emission yields of 9 and 25% occurring in aggregates and powder, respectively. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index