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Crystal structure of bis[1-{(3,5-dimethyl-1H-pyrazol-1-yl)methyl}-3,5-dimethyl-1H-pyrazol-2-ium] hexachlorouranate(IV): [H2C(3,5-Me2pz)(3,5-Me2pzH)]2[UCl6]

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Abstract

The X-ray diffraction study of a single crystal with the composition [H2C(3,5-Me2pz)(3,5-Me2pzH)]2[UCl6] (1) is performed. This compound is the product of an attempted synthesis of a bis(pyrazolyl)methane complex of uranium(IV) obtained by the reaction of UCl4 with bis(3,5-dimethylpyrazol-1-yl)methane in THF. 1 crystallizes in the space group P-1 of the triclinic system: a = 9.6616(2) Å, b = 9.6946(2) Å, c = 10.7314(2) Å, α = 107.6210(10)°, β = 115.5600(10)°, γ = 99.6710(10)°, V = 810.45(3) Å3, Z = 1, d calc = 1.765 g/cm3, μ = 5.528 mm−1, R 1 = 0.0249. The structural unit consists of two separated [H2C(3,5-Me2pz)(3,5-Me2pzH)]+ cations and a UCl 2−6 anion. In the solid state structure of 1 several short intermolecular N-H⋯N and C-H⋯Cl contacts are identified suggesting the presence of hydrogen bonds.

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Authors and Affiliations

  1. Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Bobadela LRS, Portugal

    J. M. Carretas, J. Cui, A. Cruz, I. C. Santos & J. Marçalo

  2. Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal

    I. C. Santos

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  1. J. M. Carretas
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  2. J. Cui
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  3. A. Cruz
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  4. I. C. Santos
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  5. J. Marçalo
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Correspondence to J. M. Carretas.

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Original Russian Text © 2015 J. M. Carretas, J. Cui, A. Cruz, I. C. Santos, J. Marçalo.

The text was submitted by the authors in English. Zhurnal Strukturnoi Khimii, Vol. 56, No. 1, pp. 189–192, January–February, 2015.

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Carretas, J.M., Cui, J., Cruz, A. et al. Crystal structure of bis[1-{(3,5-dimethyl-1H-pyrazol-1-yl)methyl}-3,5-dimethyl-1H-pyrazol-2-ium] hexachlorouranate(IV): [H2C(3,5-Me2pz)(3,5-Me2pzH)]2[UCl6]. J Struct Chem 56, 181–185 (2015). https://doi.org/10.1134/S0022476615010254

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  • DOI: https://doi.org/10.1134/S0022476615010254

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