title: Rational Topological Design for Fluorescence Enhancement upon Aggregation of Distyrylfuran Derivatives.
abstract: A series of 2,5-distyrylfuran derivatives bearing pentafluorophenyl- and cyanovinyl units have been synthesized for aggregation-induced emission (AIE). The effect of the type and extent of the supramolecular connections on the AIE of the furan derivatives were examined and correlated with their X-ray crystal structures. It was found that the simultaneous presence of cyano and perfluorophenyl units strongly enhances the fluorescence upon aggregation. Single-crystal X-ray diffraction analysis confirmed that CH⋅⋅⋅F, F⋅⋅⋅F, CH⋅⋅⋅nitrile, Ar⋅⋅⋅ArF (Ar=aryl, ArF =fluoroaryl), and nitrile⋅⋅⋅ArF intra- and intermolecular interactions drive the topology of the molecule and that solid-state supramolecular contacts favor AIE of the furan derivatives.
authors: Université d'Angers, MOLTECH-Anjou UMR CNRS 6200, groupe SCL, 2 Boulevard Lavoisier, 49045 Angers Cedex (France); Laboratoire de Caractérisation Photophysique des Matériaux Conjugués, Département de Chimie, Université de Montréal, CP 6128, Centre-ville, Montréal, QC (Canada).
authors: Charlotte
authors: C
authors: Mallet
authors: Chady
authors: C
authors: Moussallem
authors: Alexandre
authors: A
authors: Faurie
authors: Magali
authors: M
authors: Allain
authors: Frédéric
authors: F
authors: Gohier
authors: William G
authors: WG
authors: Skene
authors: Pierre
authors: P
authors: Frère
keywords: X-ray diffraction; aggregation; fluorescence; solid-state interactions; topology design