Synthesis of 1,2,3,4,5-pentaarylcyclopenta-2,4-diene derivatives and their aggregation-induced emission properties

Abstract

Pentaarylated cyclopentcyclodienes have aggregation-induced emission (AIE) characteristics and can be easily derivatized, but are rarely studied. In order to examine the effect of the electronic properties and the position of the substituents on AIE properties, an expedient method for the synthesis of a series of pentaarylated cyclopentadiene derivatives was developed, and their UV-Vis, fluorescence spectra, fluorescence quantum yields as well as the XRD structures of single crystals were investigated. The AIE properties of pentaarylated cyclopentadiene derivatives were studied in detail.