Synthesis, optical properties, and application of novel chalcone skeleton as pH fluorescent probe: Based AIE + ESIPT strategy

A series of "turn off" pH fluorescence probes with chalcone skeleton for basic system have been developed. The molecules emitted bright yellow fluorescence under acidic condition, resulting AIE coupled ESIPT characteristic and ICT process. What's more, the compounds exhibited excellen...

Full description

Saved in:
Bibliographic Details
Published inSpectrochimica acta. Part A, Molecular and biomolecular spectroscopy Vol. 314; p. 124199
Main Authors Wu, Xiao-Tian, Zheng, Ying-Ying, Ma, Shan-Shan, Ai, Shu-Heng, Zhou, Qi-Wang, Yang, Di, Ma, Chen
Format Journal Article
LanguageEnglish
Published England 05.06.2024
Subjects
pH fluorescence probe
ESIPT
AIE
Chalcone skeleton
Online AccessGet more information

Cover

More Information
Summary:A series of "turn off" pH fluorescence probes with chalcone skeleton for basic system have been developed. The molecules emitted bright yellow fluorescence under acidic condition, resulting AIE coupled ESIPT characteristic and ICT process. What's more, the compounds exhibited excellent sensitivity and selectivity for detecting pH as a facile "On-Off" fluorescence probe, and the fluorescence of them were quenched with the ESIPT process interrupted under alkaline condition. Theoretical calculation for the related compounds also performed to verify the electron effect on photophysical properties and confirm the rational speculation on the mechanism.
ISSN:1873-3557