Record link: 
http://hdl.handle.net/20.500.12708/191337
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Title: 
Lanthanum and some lanthanides 2,4-dichlorophenoxyactetates: Structure and luminescent properties
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Citation: 
Gusev, A. N., Konnik, O., Shul’gin, V. F., Pevzner, N. S., Kiskin, M. A., & Linert, W. (2024). Lanthanum and some lanthanides 2,4-dichlorophenoxyactetates: Structure and luminescent properties. Polyhedron, 249, Article 116749. https://doi.org/10.1016/j.poly.2023.116749
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Publisher DOI: 
10.1016/j.poly.2023.116749
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Publication Type: 
Article - Original Research Article
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Language: 
English
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Authors: 
Gusev, Alexey N. 
Konnik, Oleg 
Shul’gin, Victor F. 
Pevzner, Natalya S. 
Kiskin, Mikhail A. 
Linert, Wolfgang 
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Organisational Unit: 
E134-02 - Forschungsbereich Applied Interface Physics 
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Journal: 
Polyhedron 
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ISSN: 
0277-5387
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Date (published): 
1-Feb-2024
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Number of Pages: 
8
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Publisher: 
PERGAMON-ELSEVIER SCIENCE LTD
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Peer reviewed: 
Yes
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Keywords: 
Luminescence; Carboxylates; 2.4-dichlorophenoxyacetic acid; Lanthanum; Lanthanides; X-ray diffraction analysis
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Abstract: 
The exchange interaction of lanthanum and some lanthanides salts (neodymium, samarium, europium, gadolinium, terbium and dysprosium) with sodium salt of 2,4-dichlorophenoxyacetic acid (HL) in dimethylformamide medium produced lanthanum and lanthanide carboxylates. The compounds were studied by elemental and thermal analysis, infrared spectroscopy and X-ray structure analysis. It was found that the complexes form two isostructural series: [Ln₂L₆(DMF)₃]∙Solv (Ln = La, Nd, Sm, Eu) and [LnL₃(H₂O)₂]∙2DMF∙Solv (Ln = Gd, Tb, Dy). Both series have a one-dimensional polymer structure in which the central atoms are connected by bridging carboxylate anions. The crystal structures of the complexes have a branched network of noncovalent D-H…A and Cl…Cl interactions. An analysis of the photophysical properties of all compounds revealed a bright luminescence with a quantum yield up to 39.5 % and an excited state lifetime of 1330 μs for the europium polymer enhanced by 2,4-dichlorophenoxyacetate ligands.
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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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