Crystal structure of (H3O)6[(UO2) 5(SeO4)8(H2O)5](H 2O)5

被引：5
作者：
Krivovichev S.V. [1 ]
Kahlenberg V. [2 ]
机构：
[1] St. Petersburg State University, St. Petersburg
[2] Innsbruck University, Innsbruck
来源：
Radiochemistry | 2005年 / 47卷 / 5期
基金：
奥地利科学基金会;
关键词：
Hydrogen; Reflection; Aqueous Solution; Evaporation; Crystal Structure;
D O I：
10.1007/s11137-005-0117-3
中图分类号：
学科分类号：
摘要：
Crystals of (H3O)6[(UO2) 5(SeO4)8(H2O)5](H 2O)5 were prepared from aqueous solutions by evaporation. The crystal structure [monoclinic system, space group P21/m, a = 13.835(2), b = 13.4374(16), c = 14.310(3) Å, β = 108.004(14)°, V = 2530.1(7) Å 3] was solved by the direct method and refined to R1 = 0.090 for 4409 reflections with |F hkl ≥ 4σ|F hkl|. The structure is based on [(UO2) 5(SeO4)8(H2O)5] 6- layers arranged parallel to the (101) plane; these layers have a unique topological structure. The U(1)O6(H2O) and U(3)O6(H2O) linked through selenate groups form chains running along [1̄01] direction. The chains are combined in layers by U(2)O6(H2O) bipyramids. The layers are linked with each other by hydrogen bonds through the H2O and H3O + groups located between the layers. ©2005 Pleiades Publishing, Inc.
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页码：456 / 459
页数：3
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