Simple ratiometric push–pull with an ‘aggregation induced enhanced emission’ active pyrene derivative: a multifunctional and highly sensitive fluorescent sensor

Abstract

A simple and efficient pyrene based luminescent multifunctional probe was utilized in selective and sensitive ratiometric detection of H+, Al3+ and picric acid.

Enhanced Photoluminescence of Mesostructured Organosilica Films with a High Density of Fluorescent Chromophores

“…These results indicate that the lateral arrangement of DPPy moieties, accompanied by well‐developed H‐bonded chains, is allowed by the small steric hindrance and is suitable for efficient excimer formation (Figure b). The restriction of the rotation of the benzene rings due to the compact packing of the chromophore and the H bond formation may also contribute to the enhancement of the photoluminescence …”

AIE/ACQ Effects in Two DR/NIR Emitters: A Structural and DFT Comparative Analysis

“…By slowing/stopping the rotation, molecular luminescence can be restored. AIE fluorogens have recently received much research attention for their unique optical properties and extensive applications, because they are highly required for the development of efficient solid-state devices [ 19 , 20 ].…”

Multiple Photoluminescent Processes from Pyrene Derivatives with Aggregation‐ and Mechano‐Induced Excimer Emission

“…[17,18] In contrast, pyrene-based AIE compounds that achievem onomer-excimerc onversion in solution are less frequently reported [19] and somed erivatives are documented to exhibit both monomeric and excimer emission in solution, allowing their use as fluorescent probesa nd highlys ensitive fluorescent sensors. [14,[20][21][22][23] Regarding the emission in the solid state, variousk inds of mechanochromic illuminants based on pyrene derivates have been reported, which are accompanied by excimer-to-excimer,m onomer-to-excimer and conformation transitions. [24][25][26][27][28][29][30][31] Accordingly,i ti safacile and efficient method to use mechano-inducede xcimer emissiont oo btain excimer luminescence in the solid state.…”

“…Pyrene derivatives featuring AIE have been widely reported in recent years . In contrast, pyrene‐based AIE compounds that achieve monomer‐excimer conversion in solution are less frequently reported and some derivatives are documented to exhibit both monomeric and excimer emission in solution, allowing their use as fluorescent probes and highly sensitive fluorescent sensors . Regarding the emission in the solid state, various kinds of mechanochromic illuminants based on pyrene derivates have been reported, which are accompanied by excimer‐to‐excimer, monomer‐to‐excimer and conformation transitions .…”