Work

Investigation of a bimetallic terbium(III)/copper(II) chemosensor for the detection of aqueous hydrogen sulfide

Year: 2024

Type: article

Abstract: The chemosensor properties of a bimetallic terbium(III)/copper(II) complex functionalized with a 4-(2-pyridyl)-1,2,3-triazole ligand for the detection of Cu 2+ ions and, aqueous and gaseous hydrogen sulfide was investigated. The 4-(2-pyridyl)-1,2,3-triazole ligand functions both as an antenna chromophore and a receptor for Cu 2+ ions; the Cu 2+ complex was shown to be a chemosensor for the detection of aqueous hydrogen sulfide. The chemosensor exhibited significant reversibility over multiple cycles, observed with the sequential addition of Na 2 S followed by Cu 2+ ions. The limit of detection for aqueous hydrogen sulfide was 0.63 μM (20 ppb). No luminescent changes of the bimetallic terbium(III)/copper(II) complex were observed in the presence of gaseous hydrogen sulfide, and thus this sensor can only be used for the detection of aqueous hydrogen sulfide.

Source: Beilstein Journal of Organic Chemistry

DOI: 10.3762/bjoc.20.237

Authors: Parvathy Mini, Michael R Grace, Genevieve H Dennison, Kellie L Tuck

Institutions: Monash University, Defence Science and Technology Group

Language: English

Topic: Molecular Sensors and Ion Detection

Subfield: Spectroscopy

Field: Chemistry

Domain: Physical Sciences

Open Access status: diamond

Funders: Department of Defence, Australian Government, Monash University, Defence Science and Technology Group

OpenAlex ID: W4404070177