Synthesis and structure of Cs[UO2(SeO4)(OH)] • nH2O (n=1.5 or 1)

被引：3
|
作者：
Serezhkina, L. B. [1 ]
Peresypkina, E. V. [2 ]
Virovets, A. V. [2 ]
Pushkin, D. V. [1 ]
Verevkin, A. G. [1 ]
机构：
[1] Samara State Univ, Samara 443011, Russia
[2] Russian Acad Sci, Inst Inorgan Chem, Siberian Branch, Novosibirsk 630090, Russia
来源：
CRYSTALLOGRAPHY REPORTS | 2010年 / 55卷 / 03期
关键词：
CRYSTAL-STRUCTURES;
D O I：
10.1134/S1063774510030041
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The synthesis and single-crystal X-ray diffraction study of Cs[UO2(SeO4)(OH)] center dot 1.5H(2)O (I) and Cs[UO2(SeO4)(OH)] center dot H2O (II) are performed. Compound I crystallizes in the monoclinic crystal system, a = 7.2142(2) , b = 14.4942(4) , c = 8.9270(3) , beta = 112.706(1)A degrees, space group P2(1)/m, Z = 4, and R = 0.0222. Compound II is monoclinic, a = 8.4549(2) , b = 11.5358(3) , c = 9.5565(2) , beta = 113.273(1)A degrees, space group P2(1)/c, Z = 4, and R = 0.0219. The main structural units of crystals I and II are [UO2(SeO4)(OH)](-) layers which belong to the AT (3) M (2) crystal chemical group of uranyl complexes (A = UO (2) (2+) , T (3) = SeO4 (2-), and M (2) = OH-). In structure I, johannite-like layers are found. Structure II is a topological isomer of I. The two structures differ in the number of U(VI) atoms bound to the central atom by all bridging ligands.
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页码：381 / 385
页数：5
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