A1 Refereed original research article in a scientific journal
Sonoluminescence of chelated terbium(III) in aqueous solution
Authors: Kulmala S, Ala-Kleme T, Latva M, Haapakka K, Hakanen A
Publisher: ROYAL SOC CHEMISTRY
Publication year: 1996
Journal: Journal of the Chemical Society, Faraday Transactions
Journal name in source: JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS
Journal acronym: J CHEM SOC FARADAY T
Volume: 92
Issue: 14
First page : 2529
Last page: 2533
Number of pages: 5
ISSN: 0956-5000
DOI: https://doi.org/10.1039/ft9969202529
Abstract
Tb-III chelates containing aromatic moieties show sonoluminescence in aqueous solutions during the sonolysis of water. The observed D-5(4)-->F-7(J) transitions of Tb-III are due to the excitation of ligand, followed by an intramolecular energy transfer from the ligand to the central ion, which finally emits. No sonoluminescence of hydrated or EDTA-chelated Tb-III ion could be observed. Ligand excitation can be based either on an energy transfer from the intrinsic emission centres of the sonolysis of water to the aromatic ligand, or on redox reactions between the ligand and hydroxyl radicals and hydrogen atoms produced by the sonolysis of water. Experimental results give greater support to the latter, chemiluminescent, excitation pathway.
Tb-III chelates containing aromatic moieties show sonoluminescence in aqueous solutions during the sonolysis of water. The observed D-5(4)-->F-7(J) transitions of Tb-III are due to the excitation of ligand, followed by an intramolecular energy transfer from the ligand to the central ion, which finally emits. No sonoluminescence of hydrated or EDTA-chelated Tb-III ion could be observed. Ligand excitation can be based either on an energy transfer from the intrinsic emission centres of the sonolysis of water to the aromatic ligand, or on redox reactions between the ligand and hydroxyl radicals and hydrogen atoms produced by the sonolysis of water. Experimental results give greater support to the latter, chemiluminescent, excitation pathway.
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