Crystal structure of Cs[(UO2)2(C2O4)2(OH)] · H2O
Л. Б. СережкинаEugenia V. PeresypkinaA.V. VirovetsИ. В. МедришД. В. Пушкин
Abstract
Single crystals of Cs[(UO2)2(C2O4)2(OH)] · H2O were synthesized and structurally studied using X-ray diffraction. The compound crystallizes in monoclinic space group P21/m, Z = 2, with the unit cell parameters a = 5.5032(4) Å, b = 13.5577(8) Å, c = 9.5859(8) Å, β = 97.012(3)°, V = 709.86(9) Å3, R = 0.0444. The main building units of crystals are [(UO2)2(C2O4)2(OH)]− layers of the A2K 2 02 M2 (A = UO 2 2+ , K02 = C2O 4 2− , and M2 = OH−) crystal-chemical family. Uranium-containing layers are linked into a three-dimensional framework via electrostatic interactions with outer-sphere cations and hydrogen bonds with water molecules.
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