Europium complexes with dinitropyrazole: unusual luminescence thermal behavior and irreversible temperature sensing

Europium 3,5-dinitropyrazole complexes demonstrate an unusual luminescence behavior upon heating, i.e. there is a noticeable increase of the luminescence intensity beyond a temperature of 200 °C. We propose and successfully demonstrate the possibility of using this phenomenon for sensing overheating...

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Bibliographic Details
Published inPhysical chemistry chemical physics : PCCP Vol. 23; no. 45; pp. 2548 - 25484
Main Authors Utochnikova, Valentina V, Vatsadze, Irina A, Tsymbarenko, Dmitry M, Goloveshkin, Alexander S, Vatsadze, Sergey Z
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 24.11.2021
Subjects
Europium
Luminescence
Overheating
Thermodynamic properties
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Summary:Europium 3,5-dinitropyrazole complexes demonstrate an unusual luminescence behavior upon heating, i.e. there is a noticeable increase of the luminescence intensity beyond a temperature of 200 °C. We propose and successfully demonstrate the possibility of using this phenomenon for sensing overheating above this temperature. An on/off ratio of 37 is reached. Europium 3,5-dinitropyrazole complexes demonstrate an unusual luminescence behavior upon heating, i.e. there is a noticeable increase of the luminescence intensity beyond a temperature of 200 °C.
Bibliography:10.1039/d1cp03924e
Electronic supplementary information (ESI) available. See DOI
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ISSN:1463-9076
1463-9084
1463-9084
DOI:10.1039/d1cp03924e