91162-09-3Relevant academic research and scientific papers
Highly Emissive Water-Soluble Polysulfurated Pyrene-Based Chromophores as Dual Mode Sensors of Metal Ions
Villa, Marco,Roy, Myriam,Bergamini, Giacomo,Ceroni, Paola,Gingras, Marc
, p. 1481 - 1486 (2020)
Pyrene-based materials have gained considerable attention as stimuli-responsive chemical sensors. We designed a polysulfurated arene system based on a tetra(phenylthio)pyrene core decorated with four carboxylic acid units. Three different regioisomers, ortho, meta and para were studied in organic and aqueous solution. These systems are soluble in water at pH≥8 due to the deprotonation of carboxylic acids. The addition of metal ions cannot only quench the fluorescence of the central pyrene core, but also control the formation of three-dimensional nanoscopic objects in a dual mode function. Several divalent metal ions were tested and compared. Addition of ethylenediaminetetraacetic acid (EDTA) disassembles the non-emissive supramolecular system and restores the initial fluorescence of the pyrene core.
A turn-on phosphorescent sensor of Pb2+ in water by the formation of a coordination polymer
Villa, Marco,Roy, Myriam,Bergamini, Giacomo,Gingras, Marc,Ceroni, Paola
supporting information, p. 3815 - 3818 (2019/03/26)
Hexakis(phenylthio)benzene compounds carrying six carboxylic acid groups at their periphery combine aggregation-induced phosphorescence, water-solubility and metal-binding properties: the para-isomer is a selective and sensitive turn-on phosphorescent sen
