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Neptunium(V) Carbamide Complexes. The structure of [NpO2(HCOO){OC(NH2)2}3]

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Abstract

A new complex of Np(V) [NpO2(HCOO){OC(NH2)2}3] (I) was synthesized and its crystal structure was determined: a = 6.674(1) Å, b = 13.164(2) Å, c = 7.020(1) Å, β = 101.35(1)°, space group P21, Z = 2, V = 604.7(2) Å3, R = 0.048, wR(F  2) = 0.128. The structure consists of infinite chains of [NpO2(HCOO){OC(NH2)2}3]∞. The coordination polyhedron of the Np atom is a pentagonal bipyramid with the O atoms of three carbamide molecules and two formate ions in the equatorial plane. The absorption spectra were measured in IR and near-IR regions for compound I and for the [NpO2Cl{OC(NH2)2}4] complex, whose structure was reported in the previous publication.

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Authors and Affiliations

  1. Institute of Physical Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    N. A. Budantseva, G. B. Andreev & A. M. Fedoseev

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

    M. Yu. Antipin

Authors
  1. N. A. Budantseva
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  2. G. B. Andreev
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  3. A. M. Fedoseev
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  4. M. Yu. Antipin
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Budantseva, N.A., Andreev, G.B., Fedoseev, A.M. et al. Neptunium(V) Carbamide Complexes. The structure of [NpO2(HCOO){OC(NH2)2}3]. Russian Journal of Coordination Chemistry 30, 713–717 (2004). https://doi.org/10.1023/B:RUCO.0000043896.13436.3b

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  • DOI: https://doi.org/10.1023/B:RUCO.0000043896.13436.3b

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