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Synthesis and structures of new uranyl malonate complexes with carbamide derivatives

Synthesis and structures of new uranyl malonate complexes with carbamide derivatives Abstract Crystals of new malonate-containing uranyl complexes [UO2(C3H2O4)(Imon)(H2O)] (I) and [UO2(C3H2O4)(Meur)3] (II), where Imon is imidazolidin-2-one (ethylenecarbamide) and Meur is methyl-carbamide, have been synthesized and studied by X-ray diffraction. Both compounds crystallize in the monoclinic system with the following unit-cell parameters (at 100 K): a = 11.1147(10) Å, b = 6.9900(6) Å, c = 14.4934(12) Å, β = 92.042(2)°, V = 1125.30(17) Å3, sp. gr. P21/n, Z = 4, R 1 = 0.0398 (I); a = 16.6613(5) Å, b = 9.5635(3) Å, c = 22.9773(6) Å, β = 103.669(2)°, V = 3557.51(18) Å3, sp. gr. C2/c, Z = 8, R 1 = 0.0207 (II). The crystals are composed of electroneutral chains [UO2(C3H2O4)(Imon)(H2O)] and mononuclear groups [UO2(C3H2O4)(Meur)3] as the structural units belonging to the crystal-chemical groups AT 11 M 12 and AB 01 M 13 (A =UO 2+2 , T 11 and B 01 = C3H2, M 1 = Imon, H2O, or Meur), respectively, of uranyl complexes. The packing modes of the uranyl-containing complexes were analyzed by the method of molecular Voronoi—Dirichlet polyhedra. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Crystallography Reports Springer Journals

Synthesis and structures of new uranyl malonate complexes with carbamide derivatives

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References (15)

Publisher
Springer Journals
Copyright
2015 Pleiades Publishing, Inc.
ISSN
1063-7745
eISSN
1562-689X
DOI
10.1134/s1063774515030141
Publisher site
See Article on Publisher Site

Abstract

Abstract Crystals of new malonate-containing uranyl complexes [UO2(C3H2O4)(Imon)(H2O)] (I) and [UO2(C3H2O4)(Meur)3] (II), where Imon is imidazolidin-2-one (ethylenecarbamide) and Meur is methyl-carbamide, have been synthesized and studied by X-ray diffraction. Both compounds crystallize in the monoclinic system with the following unit-cell parameters (at 100 K): a = 11.1147(10) Å, b = 6.9900(6) Å, c = 14.4934(12) Å, β = 92.042(2)°, V = 1125.30(17) Å3, sp. gr. P21/n, Z = 4, R 1 = 0.0398 (I); a = 16.6613(5) Å, b = 9.5635(3) Å, c = 22.9773(6) Å, β = 103.669(2)°, V = 3557.51(18) Å3, sp. gr. C2/c, Z = 8, R 1 = 0.0207 (II). The crystals are composed of electroneutral chains [UO2(C3H2O4)(Imon)(H2O)] and mononuclear groups [UO2(C3H2O4)(Meur)3] as the structural units belonging to the crystal-chemical groups AT 11 M 12 and AB 01 M 13 (A =UO 2+2 , T 11 and B 01 = C3H2, M 1 = Imon, H2O, or Meur), respectively, of uranyl complexes. The packing modes of the uranyl-containing complexes were analyzed by the method of molecular Voronoi—Dirichlet polyhedra.

Journal

Crystallography ReportsSpringer Journals

Published: Sep 1, 2015

Keywords: Crystallography and Scattering Methods

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