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

Autor: Mini P; School of Chemistry, Monash University, Clayton, Victoria 3800, Australia., Grace MR; School of Chemistry, Monash University, Clayton, Victoria 3800, Australia., Dennison GH; CBRN Defence, Sensors and Effectors Division, Defence Science and Technology Group, Edinburgh, SA, 5111, and Fishermans Bend, VIC, 3207, Australia., Tuck KL; School of Chemistry, Monash University, Clayton, Victoria 3800, Australia.
Jazyk: angličtina
Zdroj: Beilstein journal of organic chemistry [Beilstein J Org Chem] 2024 Nov 05; Vol. 20, pp. 2818-2826. Date of Electronic Publication: 2024 Nov 05 (Print Publication: 2024).
DOI: 10.3762/bjoc.20.237
Abstrakt: 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.
(Copyright © 2024, Mini et al.)
Databáze: MEDLINE
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