Gusev, A. N., Hasegawa, M., Shimizu, T., Fukawa, T., Sakurai, S., Nishchymenko, G. A., Shul’gin, V. F., Meshkova, S. B., & Linert, W. (2013). Synthesis, structure and luminescence studies of Eu(III), Tb(III), Sm(III), Dy(III) cationic complexes with acetylacetone and bis(5-(pyridine-2-yl)-1,2,4-triazol-3-yl)propane. Inorganica Chimica Acta, 406, 279–284. https://doi.org/10.1016/j.ica.2013.04.006
E163-01-2 - Forschungsgruppe Koordinationschemie und bio-anorganische Chemie
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Journal:
Inorganica Chimica Acta
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ISSN:
0020-1693
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Date (published):
1-Sep-2013
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Number of Pages:
6
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Publisher:
ELSEVIER SCIENCE SA
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Peer reviewed:
Yes
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Keywords:
Inorganic Chemistry; luminescence; Physical and Theoretical Chemistry; Materials Chemistry; 2; 1; Ln complex; 4-triazole derivatives; X-ray study
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Abstract:
Synthesis, structure and luminescence studies of eight-coordinate Eu, Tb, Sm and Dy complexes of the type [Ln(acac)2(L)]Cl (Hacac = pentanedione-2,4 and L = bis(5-(pyridine-2-yl)-1,2,4-triazol-3-yl)propane) are reported in detail. The resulting complexes have been investigated by various means including elemental- and thermogravimetric analysis, IR- and electron transition spectroscopy. The structure of the Tb complex was determined by single-crystal X-ray crystallography: Tb is eight-coordinate, and L acting only as a tetradentate chelate together with two bidentate acac ligands. Photo-physical studies of the complexes were carried out. The Tb(III) and Eu(III) complexes show strong emissions both in soid state and solution. The intensity of the luminescence of Dy(III) and Sm(III) are relatively weak. The factors determining the intensity of the photoluminescence are discussed.