Jump to main content
Jump to site search


Rational design of boron-dipyrromethene-based fluorescent probe for detecting Pd2+ sensitively and selectively in aqueous medium

Abstract

A novel fluorescent probe for Pd2+ based on the BODIPY fluorophore exploiting the PET (Photoinduced Electron Transfer) mechanism was designed and successfully synthesized. The fluorescent probe 1 was prepared by introducing m-bisimidazolylbenzene which connected by phenyl acetylene to BODIPY dye at meso position. It exhibited rapid response, high sensitivity and selectivity toward Pd2+. Probe 1 presented a rapid quenched fluorescence response in aqueous buffer media (pH 5.5) and the detection limit estimated from the titration results was 2.9×10−7 M. Meanwhile, the recognition process could not be interfered by other common metal ions. The DFT calculation proved that coordination of bisimidazole ligands with Pd2+ effectively decreases the LUMO energy of m-bisimidazolylbenzene which located between the HOMO and LUMO energies of the BODIPY dye and leading to fluorescence quenching via d-PET mechanism.

Back to tab navigation

Supplementary files

Publication details

The article was received on 23 Jun 2018, accepted on 21 Nov 2018 and first published on 21 Nov 2018


Article type: Paper
DOI: 10.1039/C8AN01155A
Citation: Analyst, 2018, Accepted Manuscript
  •   Request permissions

    Rational design of boron-dipyrromethene-based fluorescent probe for detecting Pd2+ sensitively and selectively in aqueous medium

    Y. Li, L. Yang, M. Du and G. Chang, Analyst, 2018, Accepted Manuscript , DOI: 10.1039/C8AN01155A

Search articles by author

Spotlight

Advertisements