Abstract
Compounds p-HOOCC6F4COOH · H2O (H2L · H2O), [Tb2(H2O)4(L)3 · 2H2O] n (I), and Tb2(Phen)2(L)3 · 2H2O (II) are synthesized. According to the X-ray structure analysis data, the crystal structure of H2L · H2O is built of centrosymmetric molecules H2L and molecules of water of crystallization. The crystal structure of compound I is built of layers of coordination 2D polymer [Tb2(H2O)4(L)3] n and molecules of water of crystallization. The ligands are the L2− anions performing both the tetradentate bridging and pentadentate bridging-chelating functions. The coordination polyhedron TbO9 is a distorted three-capped trigonal prism. Acid H2L manifests photoluminescence in the UV region (λmax = 368 nm). Compounds I and II have the green luminescence characteristic of the Tb3+ ions, and the band with λmax = 545 nm (transition 5 D 4→ 7 F 5) is maximum in intensity. The photoluminescence intensity of compound II is higher than that for compound I.
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Original Russian Text © S.V. Larionov, L.I. Myachina, L.A. Glinskaya, I.V. Korol’kov, E.M. Uskov, O.V. Antonova, V.M. Karpov, V.E. Platonov, V.P. Fadeeva, 2012, published in Koordinatsionnaya Khimiya, 2012, Vol. 38, No. 12, pp. 827–833.
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Larionov, S.V., Myachina, L.I., Glinskaya, L.A. et al. Syntheses and structures of p-HOOCC6F4COOH · H2O (H2L · H2O) and luminescent coordination polymers [Tb2(H2O)4(L)3 · 2H2O] n and Tb2(Phen)2(L)3 · 2H2O. Russ J Coord Chem 38, 717–723 (2012). https://doi.org/10.1134/S1070328412110036
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DOI: https://doi.org/10.1134/S1070328412110036