Advances in Organofluorine Compounds with Aggregation-Induced Emission

Abstract

Aggregation-induced emission (AIE) compounds have attracted much attention due to their important potential applications in biological and chemical sensing, luminescent materials, display and other areas. As an important class of functional molecules, organofluorine compounds have been widely studied in areas such as organic chemitry and materials chemistry. The organofluorine compounds with AIE properties are summarized and classified. The currently reported AIE organofluorine compounds include the fluorinated tetraphenylethene (TPE) derivatives, 9,10-distyrylanthracene (DSA) derivatives, cyanostilbene derivatives, distyrylbenzene derivatives, fluorinated polymers, carborane clusters, room temperature phosphorescent molecules, and some other fluorinated structures. With fluorine atoms in the structures, the stability of the resulting AIE compounds is generally improved, and fluorine atoms often participate in the intermolecular interactions leading to significant changes in the structure of the aggregation state, and hence changes in luminescence properties, for example, emission enhancement, bathochromism or hypsochromism of the emissions, improvement of the emission quantum yield and lifetime. The prospects of the future study are also discussed.