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Synthesis and structure of (NH4)3[UO2(C3H2O4)2(NCS)] · 2H2O

  • Structure of Inorganic Compounds
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Abstract

Malonate-thiocyanate complex (NH4)3[UO2(C3H2O4)2(NCS)] · 2H2O is synthesized and studied by X-ray diffraction. The compound crystallizes in the monoclinic system: a = 13.9983(4) Å, b = 8.1947(2) Å, c = 16.4678(4) Å, β = 100.846(1)°, space group Cc, Z = 4, and R = 0.0158. The main structural units of the crystal are mononuclear [UO2(C3H2O4)2(NCS)]3− groups belonging to the AB 012 M 1 crystal chemical group of uranyl complexes (A = UO 2+2 , B 01 = C3H2O 2−4 , M 1 = NCS). Discrete uranium-containing groups are connected by electrostatic interactions with ammonium ions and by hydrogen bonds. Some specific structural features of crystals containing [UO2(L)2(NCS)]3− complexes, where L is the oxalate or malonate ion, are discussed.

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Correspondence to L. B. Serezhkina.

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Original Russian Text © L.B. Serezhkina, E.V. Peresypkina, A.V. Virovets, Ya.A. Medvedkov, V.N. Serezhkin, 2014, published in Kristallografiya, 2014, Vol. 59, No. 1, pp. 53–57.

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Serezhkina, L.B., Peresypkina, E.V., Virovets, A.V. et al. Synthesis and structure of (NH4)3[UO2(C3H2O4)2(NCS)] · 2H2O. Crystallogr. Rep. 59, 48–52 (2014). https://doi.org/10.1134/S1063774513050106

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  • DOI: https://doi.org/10.1134/S1063774513050106

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