Crystal structure of R[UO2(CH3COO)3] (R = NH 4+ , K+, or Cs+) |
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Authors: | L B Serezhkina A V Vologzhanina V V Klepov and V N Serezhkin |
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Abstract: | The single crystal structure of NH4UO2(CH3COO)3] (I), KUO2(CH3COO)3] (II), and CsUO2(CH3COO)3] (III) is studied by X-ray diffraction. I and II crystallize in the tetragonal crystal system. The crystal data are as follows: a = 13.6985(3) and c = 27.5678(14) ?, V = 5173.1(3) ?3, space group I41/a, Z = 16, and R = 0.023 for I; a = 13.8890(5) and c = 26.0839(18) ?, V = 5031.7(4) ?3, space group I41/a, Z = 16, and R = 0.037 for II. Crystals III are orthorhombic, a = 18.176(2), b = 13.119(2), and c = 22.088(4) ?, V = 5267(1)?3, space group Pbca, Z = 16, and R = 0.0424. In structures I–III, the uranium-containing structural units are represented by discrete mononuclear UO2(CH3COO)3]− groups, which belong to the AB
301 (A = UO22+, B
01=CH3COO−) crystal chemical group of uranyl complexes. |
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