Related Experiment Video
Updated: Sep 27, 2025

Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
Published on: June 10, 2021
A novel AIE-active imidazolium macrocyclic ratiometric fluorescence sensor for pyrophosphate anion
Jia-Bin Xiong1,2, Ding-Ding Ban1, Yong-Juan Zhou1
1School of Material and Chemical Engineering, Center for Advanced Materials Research, Zhongyuan University of Technology Zhengzhou 450007 China xjiabin@foxmail.com mlwzzu@163.com.
Abstract:
An imidazolium bridged macrocyclophane was synthesized as a ratiometric fluorescence sensor with aggregation-induced emission (AIE) characteristic to detect pyrophosphate anion with high selectivity among various anions. In the presence of zinc ion, macrocyclophane can form aggregates through complexation with pyrophosphate anion and emit ratiometric fluorescence, resulting from an enhancement in its aggregate-state emission and a reduction in its monomer emission. This AIE-active macrocycle showed great potential as a ratiometric fluorescence receptor.
Related Concept Videos
Photoluminescence: Applications
Fluorescence and Phosphorescence: Instrumentation

