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The novel dinuclear complex tetraaquahexakis(nitrato-O,O')bis(2,4,6,8-tetramethyl-2,4,6,8-tetraazabicyclo[3.3.0]octane-3,7-dione-O,O')dipraseodymium(III): Synthesis and crystal structure

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Abstract

A centrosymmetric dinuclear complex, [Pr(C8H14N4O2)(H2O)2(NO3)3]2 (I), was obtained from praseodymium(III) nitrate and the bicyclic bisurea 2,4,6,8-tetramethyl-2,4,6,8-tetraazabicy-clo[ 3.3.0]octane-3,7-dione (mebicar, Mc) and structurally characterized (CIF file CCDC no. 1435137). The crystals of complex I are triclinic: space group \(P\bar 1\), a = 9.8967(5), b = 10.3689(5), c = 11.0018(6) Å, α = 74.650(5)°, β = 68.064(5)°, γ = 67.257(5)°, V = 956.22(10) Å3, ρcalcd = 1.949 g/cm3, Z = 1. The praseodymium atom is coordinated to two O atoms of two Mc molecules (related by a center of symmetry), three bidentate nitrate anions, and two water molecules. So its coordination polyhedron has ten vertices; the Pr…Pr distance is 9.8726(7) Å.

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Authors and Affiliations

  1. Vernadsky Crimean Federal University, Simferopol, Russia

    E. E. Netreba, S. V. Shabanov & A. A. Velikozhon

  2. Lobachevsky State University, Nizhny Novgorod, Russia

    N. V. Somov

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  1. E. E. Netreba
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  2. S. V. Shabanov
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  3. A. A. Velikozhon
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  4. N. V. Somov
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Correspondence to E. E. Netreba.

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Original Russian Text © E.E. Netreba, S.V. Shabanov, A.A. Velikozhon, N.V. Somov, 2016, published in Koordinatsionnaya Khimiya, 2016, Vol. 42, No. 6, pp. 329–333.

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Netreba, E.E., Shabanov, S.V., Velikozhon, A.A. et al. The novel dinuclear complex tetraaquahexakis(nitrato-O,O')bis(2,4,6,8-tetramethyl-2,4,6,8-tetraazabicyclo[3.3.0]octane-3,7-dione-O,O')dipraseodymium(III): Synthesis and crystal structure. Russ J Coord Chem 42, 367–371 (2016). https://doi.org/10.1134/S1070328416060051

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  • DOI: https://doi.org/10.1134/S1070328416060051

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