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Synthesis and structure of (CN3H6)2[UO2CrO4(C5H3N(COO)2)]

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Abstract

(CN3H6)2[UO2CrO4(C5H3N(COO)2)] crystals (where CN3H6 is the guanidinium cation and C5H3N(COO)2 is the pyridine-2,6-dicarboxylate anion) have been synthesized and studied by X-ray diffraction and IR spectroscopy. The compound crystallizes in triclinic system with the unit cell parameters a = 7.4115(3) Å, b = 10.0365(7) Å, c = 12.1822(10) Å, α = 93.992(6)°, β = 97.749(7)°, γ = 96.907(6)°; space group \(P\bar 1\), Z = 2, R = 0.0721. The structure consists of [UO2CrO4(C5H3N(COO)2)] 4−2 , centrosymmetric dimers linked with the outer-sphere guanidinium ions by means of electrostatic interactions and hydrogen bonds. [UO2CrO4(C5H3N(COO)2)] 4−2 dimers belong to the AT001B2 crystallochemical group (A = UO 2+2 , T001 = C5H3N(COO) 2−2 B2 = CrO 2−4 ) of uranyl complexes. Using molecular Voronoi-Dirichlet polyhedra, we have established that, in addition to hydrogen bonds, the π-π stacking interaction also produces some effect on the packing of uranyl-containing complexes in the studied structure.

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Authors and Affiliations

  1. Samara State University, ul. Akademika Pavlova 1, Samara, 443011, Russia

    L. B. Serezhkina, S. A. Novikov & V. N. Serezhkin

  2. Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent’eva 3, Novosibirsk, 630090, Russia

    E. V. Peresypkina & A. V. Virovets

Authors
  1. L. B. Serezhkina
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  2. E. V. Peresypkina
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  3. S. A. Novikov
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  4. A. V. Virovets
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  5. V. N. Serezhkin
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Correspondence to L. B. Serezhkina.

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Original Russian Text © L.B. Serezhkina, E.V. Peresypkina, S.A. Novikov, A. V. Virovets, V.N. Serezhkin, 2013, published in Zhurnal Neorganicheskoi Khimii, 2013, Vol. 58, No. 1, pp. 22–28.

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Serezhkina, L.B., Peresypkina, E.V., Novikov, S.A. et al. Synthesis and structure of (CN3H6)2[UO2CrO4(C5H3N(COO)2)]. Russ. J. Inorg. Chem. 58, 19–25 (2013). https://doi.org/10.1134/S0036023613010166

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  • DOI: https://doi.org/10.1134/S0036023613010166

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