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SYNTHESIS, CRYSTAL STRUCTURE, AND LUMINESCENT PROPERTIES OF [{Ln(H2O)6}2(CB[6])]Cl6·nH2O (Ln = Yb, Eu, Tb)

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Abstract

Binuclear lanthanide complexes with cucurbit[6]uril (CB[6]), [{Ln(H2O)6}2(μ-CB[6])]Cl6·nH2O (Ln = Yb(1), Eu(2), Tb(3)), are prepared by evaporating a solution containing lanthanide chloride and cucurbit[6]uril. The XRD data for the single crystal of 1 show that the metal in this compound is connected to the macrocycle due to the bidentate coordination of oxygen atoms of cucurbit[6]uril portals to lanthanide(III) cations, leading to the formation of a cationic complex. In the crystal, the [{Ln(H2O)6}2(CB[6])]6+ cations are interconnected by a system of hydrogen bonds. Compounds 1–3 are isostructural. The studied compounds are characterized by IR spectroscopy, thermogravimetric and elemental analyses, X-ray powder diffraction, and luminescence spectroscopy.

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Funding

This work was funded by the Russian Science Foundation (project No. 22-23-00176).

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Authors and Affiliations

  1. Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

    I. V. Andrienko, D. G. Samsonenko & E. A. Kovalenko

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  1. I. V. Andrienko
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  2. D. G. Samsonenko
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  3. E. A. Kovalenko
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Correspondence to E. A. Kovalenko.

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The authors declare that they have no conflicts of interests.

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Russian Text © The Author(s), 2023, published in Zhurnal Strukturnoi Khimii, 2023, Vol. 64, No. 9, 115594.https://doi.org/10.26902/JSC_id115594

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Andrienko, I.V., Samsonenko, D.G. & Kovalenko, E.A. SYNTHESIS, CRYSTAL STRUCTURE, AND LUMINESCENT PROPERTIES OF [{Ln(H2O)6}2(CB[6])]Cl6·nH2O (Ln = Yb, Eu, Tb). J Struct Chem 64, 1626–1634 (2023). https://doi.org/10.1134/S0022476623090068

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