X-ray diffraction study of Rb2[(UO2)2(CrO4)3(H2O)2] · 4H2O

被引：0
|
作者：
A. G. Verevkin
A. V. Vologzhanina
L. B. Serezhkina
V. N. Serezhkin
机构：
[1] Samara State University,Nesmeyanov Institute of Organoelement Compounds
[2] Russian Academy of Sciences,undefined
来源：
Crystallography Reports | 2010年 / 55卷
关键词：
Crystallography Report; Monodentate Ligand; Uranium Atom; Uranyl Complex; Coordination Sequence;
D O I：
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摘要：
The compound Rb2[(UO2)2(CrO4)3(H2O)2] · 4H2O was studied by X-ray diffraction. The crystals are monoclinic, a = 10.695(2) Å, b = 14.684(3) Å, c = 14.125(3) Å, β = 108.396(4)°, sp. gr. P21/c, Z = 4, V = 2104.9(7) Å3, and R = 0.0491. The main structural units are layers consisting of [(UO2)2(CrO4)3(H2O)2]2− anions belonging to the crystal-chemical group A2T23B2M21 (A = UL22+, T3 and B2 are CrO42−, and M1 is H2O) of uranyl complexes. The uranium-containing layered groups are held together by electrostatic interactions with rubidium cations, as well as by hydrogen bonds with the participation of inner- and outer-sphere water molecules.
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页码：602 / 608
页数：6
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