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Cesium tetrakis(1-(1,5-dimethyl-1H-pyrazol-4-yl)-4,4,4-trifluorobutane-1,3-diono)europiate(III): Synthesis, crystal structure, and luminescence properties

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Abstract

Anionic complex Cs+[EuL4]− (I) is synthesized by the reaction of Eu(NO3)3 · 6H2O with 1-(1,5-dimethyl-1H-pyrazol-4-yl)-4,4,4-trifluorobutane-1,3-dione (HL) and CsOH in an aqueous-alcohol medium. Unstable adduct Cs+[EuL4]− · 2CH2Cl2 (Ia) is obtained from a solution in CH2Cl2. The structure of complex Ia is determined by X-ray diffraction analysis. The crystals of complex Ia at 100 K are monoclinic, a = 10.8435(5), b = 20.1353(9), c = 23.355(1) Å, β = 92.548(1)°, V = 5094.3(4) Å3, space group P21/n, Z = 4, and R = 0.0294. The coordination number of the Cs+ ion is 9. The Cs+ ion forms shortened (up to 3.3 Å) contacts with the O, N, and F atoms of four diketonate fragments joining the molecules into a three-dimensional structure.

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Authors and Affiliations

  1. Peoples Friendship University, ul. Miklukho-Maklaya 6, Moscow, Russia

    I. V. Taidakov & S. S. Krasnosel’skii

  2. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 119991, Russia

    I. V. Taidakov, A. N. Lobanov & A. G. Vitukhnovskii

  3. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991, Russia

    Z. A. Starikova

Authors
  1. I. V. Taidakov
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  2. S. S. Krasnosel’skii
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  3. A. N. Lobanov
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  4. A. G. Vitukhnovskii
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  5. Z. A. Starikova
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Correspondence to I. V. Taidakov.

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Original Russian Text © I.V. Taidakov, S.S. Krasnosel’skii, A.N. Lobanov, A.G. Vitukhnovskii, Z.A. Starikova, 2013, published in Koordinatsionnaya Khimiya, 2013, Vol. 39, No. 9, pp. 567–571.

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Taidakov, I.V., Krasnosel’skii, S.S., Lobanov, A.N. et al. Cesium tetrakis(1-(1,5-dimethyl-1H-pyrazol-4-yl)-4,4,4-trifluorobutane-1,3-diono)europiate(III): Synthesis, crystal structure, and luminescence properties. Russ J Coord Chem 39, 680–684 (2013). https://doi.org/10.1134/S107032841309008X

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  • DOI: https://doi.org/10.1134/S107032841309008X

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