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Crystal and molecular structure of adducts of uranyl pivaloyltrifluoroacetonate with hexamethylphosphoramide and of uranyl trifluoroacetylacetonate with trimethyl phosphate

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Abstract

Crystal and molecular structures of adducts of uranyl pivaloyltrifluoroacetonate with hexamethylphosphoramide [UO2(PTFA)2(HMPA)] (I) and of uranyl trifluoroacetylacetonate with trimethyl phosphate [UO2(TFA)2(TMP)] (II) were determined. Compound I crystallizes in the monoclinic system, space group P21/n; a = 16.9384(3), b = 9.1090(2), c = 20.9844(4) Å, β = 101.5337(10)°, V = 3172.34(11) Å3 (at 100 K); Z = 4. Compound II crystallizes in the rhombic system, space group Pbca; a = 17.8214(4), b = 7.7786(2), c = 30.9176(7) Å, V = 4285.97(18) Å3 (at 100 K); Z = 8. In both cases, the cis isomer in which the neutral ligand is located between the trifluoromethyl groups is realized. Compound I differing from II by the stronger branching of ligand periphery is characterized by stronger structural deformations in the crystal.

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Authors and Affiliations

  1. Khlopin Radium Institute, Research and Production Association, Federal State Unitary Enterprise, St. Petersburg, Russia

    G. V. Sidorenko & D. N. Suglobov

  2. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia

    M. S. Grigor’ev

  3. Geological Faculty, St. Petersburg State University, St. Petersburg, Russia

    V. V. Gurzhiy & S. V. Krivovichev

Authors
  1. G. V. Sidorenko
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  2. M. S. Grigor’ev
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  3. V. V. Gurzhiy
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  4. S. V. Krivovichev
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  5. D. N. Suglobov
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Correspondence to G. V. Sidorenko.

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Original Russian Text © G.V. Sidorenko, M.S. Grigor’ev, V.V. Gurzhiy, S.V. Krivovichev, D.N. Suglobov, 2009, published in Radiokhimiya, 2009, Vol. 51, No. 6, pp. 495–502.

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Sidorenko, G.V., Grigor’ev, M.S., Gurzhiy, V.V. et al. Crystal and molecular structure of adducts of uranyl pivaloyltrifluoroacetonate with hexamethylphosphoramide and of uranyl trifluoroacetylacetonate with trimethyl phosphate. Radiochemistry 51, 567–575 (2009). https://doi.org/10.1134/S1066362209060034

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  • DOI: https://doi.org/10.1134/S1066362209060034

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