Crystal structure of double acetates SrAnO2(OOCCH 3)3•3H2O [An = Np(V), Pu(V)]

被引：3
|
作者：
Charushnikova I.A. [1 ]
Krot N.N. [1 ]
Polyakova I.N. [2 ]
Starikova Z.A. [3 ]
机构：
[1] Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow
[2] Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow
[3] Nesmeyanov Institute of Organoelemental Compounds, Russian Academy of Sciences, Moscow
来源：
Radiochemistry | 2007年 / 49卷 / 4期
关键词：
61.10.Nz; 61.66.Fn;
D O I：
10.1134/S1066362207040029
中图分类号：
学科分类号：
摘要：
The crystal structure of isostructural Pu(V) and Np(V) acetates of the general composition SrAnO2Ac3 • 3H2O (Ac = CH3COO-) was determined. The structures are based on complex anions [AnO2Ac3]2- and Sr2+ cations combined into a three-dimensional framework with water molecules located in framework cavities. The An(V) atoms are characterized by the hexagonal-bipyramidal oxygen surrounding; the equatorial plane is formed by the O atoms of three acetate groups. The coordination surrounding of the Sr atom is a tetragonal antiprism formed by the O atoms of acetate ions and water molecules. The bond lengths within the coordination sphere decrease in passing from Np(V) to Pu(V): the average An=O and An-O bond lengths are 1.828(5) and 2.549(6) Å for Np and 1.811(4) and 2.530(4) Å for Pu, respectively. © 2007 Pleiades Publishing, Inc.
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页码：335 / 339
页数：4
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