Record link: 
http://hdl.handle.net/20.500.12708/218190
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Title: 
Structure, photo- and electroluminescence of new Zn complexes with pyrazolone-type Schiff bases of aliphatic amines
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Citation: 
Braga, E., Zamnius, E., Mamontov, K., Gusev, A. N., Kiskin, M., & Linert, W. (2025). Structure, photo- and electroluminescence of new Zn complexes with pyrazolone-type Schiff bases of aliphatic amines. Journal of Molecular Structure, 1348, 143338–143346. https://doi.org/10.1016/j.molstruc.2025.143338
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Publisher DOI: 
10.1016/j.molstruc.2025.143338
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Publication Type: 
Article - Original Research Article
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Language: 
English
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Authors: 
Braga, Elena 
Zamnius, Ekaterina 
Mamontov, Kirill 
Gusev, A.N. 
Kiskin, Mikhail 
Linert, Wolfgang 
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Organisational Unit: 
E134-02 - Forschungsbereich Applied Interface Physics 
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Journal: 
Journal of Molecular Structure 
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ISSN: 
0022-2860
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Date (published): 
Jul-2025
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Number of Pages: 
9
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Publisher: 
ELSEVIER
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Peer reviewed: 
Yes
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Keywords: 
Zinc complex; Luminescence; Pyrazolones; Excitation-dependent emission; OLED
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Abstract: 
2-phenyl-pyrazol-3-ones, have been prepared and characterized by NMR, IR, ESI-MS and UV-vis spectroscopies, elemental and thermal analysis, and single-crystal X-ray diffraction. Photophysical properties of title complexes were studied both in solutions and solid state. Complexes displayed strong blue luminescent emissions (QY = 4.8- 22.9 %) in the solid state and weak emissions in solution. Moreover, an excitation-dependent emission due to retarded rotation around the C=N bond is observed for the complex with benzyl azomethine derivative. For complexes with propyl, butyl and benzyl substituents thin-film electroluminescent devices producing blue emission with brightness up to 4700 Cd/m2 have been obtained.
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Research Areas: 
Materials Characterization: 100%
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Science Branch: 
1040 - Chemie: 50%
1030 - Physik, Astronomie: 50%
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