Energy transfer process in the reaction system NH2OH-OH-NaOH-CU(II)−Eu(III) / thenoyltrifluoroacetone

Energy transfer process in the reaction system NH2OH-OH-NaOH-CU(II)−Eu(III) / thenoyltrifluoroacetone

Chemiluminescence (CL) in the system containing hyrdroxylamine, sodium hydroxide, copper(II) ions and complex of europium(III) with thenoyltrifluoroacetone has been studied. A weak emission arises from hydroxylamine in the presence of copper(II) ions in a basic aqueous solution. Addition of europium...

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Main Authors: Stefan Lis, Małgorzata Kaczmarek
Format: Article
Language:English
Published: Hindawi Limited 2005-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/S1110662X05000218
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spelling doaj-999a3fdeceaa4d4593aedb70027f28f42020-11-24T22:35:05ZengHindawi LimitedInternational Journal of Photoenergy1110-662X2005-01-017314314610.1155/S1110662X05000218Energy transfer process in the reaction system NH2OH-OH-NaOH-CU(II)−Eu(III) / thenoyltrifluoroacetoneStefan Lis0Małgorzata Kaczmarek1Department of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, Poznań 60-780, PolandDepartment of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, Poznań 60-780, PolandChemiluminescence (CL) in the system containing hyrdroxylamine, sodium hydroxide, copper(II) ions and complex of europium(III) with thenoyltrifluoroacetone has been studied. A weak emission arises from hydroxylamine in the presence of copper(II) ions in a basic aqueous solution. Addition of europium(III) chelate to this system causes a significant increase in the chemiluminescence intensity. The dominant band observed in the emission spectrum occurs at λ∼ 600 nm, confirming that Eu(III) ions are the only emitters in the system studied. A strong correlation between the CL intensity and the concentrations of europium(III) chelate was observed. It means that europium(III) thenoyltrifluoroacetone complex does not influence the oxidation rate of hydroxylamine and indicates its important role in this reaction as a sensitiser. A possible mechanism of the chemiluminescence of the NH2OH-OH-NaOH-CU(II)−Eu(III) chelate system is presented.http://dx.doi.org/10.1155/S1110662X05000218
collection DOAJ
language English
format Article
sources DOAJ
author Stefan Lis
Małgorzata Kaczmarek
spellingShingle Stefan Lis
Małgorzata Kaczmarek
Energy transfer process in the reaction system NH2OH-OH-NaOH-CU(II)−Eu(III) / thenoyltrifluoroacetone
International Journal of Photoenergy
author_facet Stefan Lis
Małgorzata Kaczmarek
author_sort Stefan Lis
title Energy transfer process in the reaction system NH2OH-OH-NaOH-CU(II)−Eu(III) / thenoyltrifluoroacetone
title_short Energy transfer process in the reaction system NH2OH-OH-NaOH-CU(II)−Eu(III) / thenoyltrifluoroacetone
title_full Energy transfer process in the reaction system NH2OH-OH-NaOH-CU(II)−Eu(III) / thenoyltrifluoroacetone
title_fullStr Energy transfer process in the reaction system NH2OH-OH-NaOH-CU(II)−Eu(III) / thenoyltrifluoroacetone
title_full_unstemmed Energy transfer process in the reaction system NH2OH-OH-NaOH-CU(II)−Eu(III) / thenoyltrifluoroacetone
title_sort energy transfer process in the reaction system nh2oh-oh-naoh-cu(ii)−eu(iii) / thenoyltrifluoroacetone
publisher Hindawi Limited
series International Journal of Photoenergy
issn 1110-662X
publishDate 2005-01-01
description Chemiluminescence (CL) in the system containing hyrdroxylamine, sodium hydroxide, copper(II) ions and complex of europium(III) with thenoyltrifluoroacetone has been studied. A weak emission arises from hydroxylamine in the presence of copper(II) ions in a basic aqueous solution. Addition of europium(III) chelate to this system causes a significant increase in the chemiluminescence intensity. The dominant band observed in the emission spectrum occurs at λ∼ 600 nm, confirming that Eu(III) ions are the only emitters in the system studied. A strong correlation between the CL intensity and the concentrations of europium(III) chelate was observed. It means that europium(III) thenoyltrifluoroacetone complex does not influence the oxidation rate of hydroxylamine and indicates its important role in this reaction as a sensitiser. A possible mechanism of the chemiluminescence of the NH2OH-OH-NaOH-CU(II)−Eu(III) chelate system is presented.
url http://dx.doi.org/10.1155/S1110662X05000218
work_keys_str_mv AT stefanlis energytransferprocessinthereactionsystemnh2ohohnaohcuiieuiiithenoyltrifluoroacetone
AT małgorzatakaczmarek energytransferprocessinthereactionsystemnh2ohohnaohcuiieuiiithenoyltrifluoroacetone
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