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Detection of aqueous and gaseous hydrogen sulfide with lanthanide–macrocycle binary complexes.
- Source :
- Dalton Transactions: An International Journal of Inorganic Chemistry; 9/21/2023, Vol. 52 Issue 35, p12235-12243, 9p
- Publication Year :
- 2023
-
Abstract
- Two novel, discrete lanthanide–macrocycle binary complexes for the detection of hydrogen sulfide are reported. The hydrogen sulfide sensing mechanism utilises the copper sequestration at a secondary binding site, with resulting bimetallic lanthanide(III)/copper(II) complexes (Ln = Eu<superscript>3+</superscript> and Tb<superscript>3+</superscript>) exhibiting high selectivity, good sensitivity and excellent reversibility for aqueous hydrogen sulfide. The inclusion of the DO2A macrocycle and 4-(2-pyridyl)-1,2,3-triazole dipicolinic acid ligand, results in a complex with good solubility and stability. The europium(III) complex also displayed a low limit of detection (665 ppb) with a response time of 30 seconds with gaseous hydrogen sulfide. The improved water solubility and stability over a previous complex results in these sensors having the potential for use in environmental monitoring and biological studies for various functional settings. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 52
- Issue :
- 35
- Database :
- Complementary Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 171923522
- Full Text :
- https://doi.org/10.1039/d3dt02150e