Synthesis and properties of actinide dimolybdate complexes M2[AnO2(MoO4)2]·H2O (M = Rb, Cs; An = Np, Pu)

被引：3
作者：
Budantseva N.A. [1 ]
Grigor’ev M.S. [1 ]
Ivanova A.G. [1 ,2 ]
Fedoseev A.M. [1 ]
机构：
[1] Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, korp. 4, Moscow
[2] Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow
来源：
Radiochemistry | 2016年 / 58卷 / 02期
关键词：
crystal structure; molybdates; neptunium; plutonium; spectra; synthesis;
D O I：
10.1134/S1066362216020016
中图分类号：
学科分类号：
摘要：
New Np(VI) and Pu(VI) dimolybdates Rb2NpO2(MoO4)2·H2O (I), Cs2NpO2(MoO4)2·H2O (II), Cs2PuO2(MoO4)2·H2O (III), and Rb2PuO2(MoO4)2·H2O (IV) were synthesized under hydrothermal conditions. The crystal structures of the compounds were determined, and their absorption spectra in the UV, visible, and IR ranges were measured. The compounds crystallize in the monoclinic system. Their crystal structure is based on [AnO2(MoO4)2]n 2n– anionic layers (An = Np, Pu) formed by (AnO2)O5 pentagonal bipyramids and MoO4 tetrahedra, sharing common vertices. Each An atom in the layer is bonded to other five An atoms via MoO4 tetrahedra with the formation of a 43432 network. The effect of the ionic radius of the outer-sphere cation on the parameters of the crystal structure and features of the absorption spectra is discussed. © 2016, Pleiades Publishing, Inc.
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页码：107 / 113
页数：6
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