Synthesis and crystal structure of Cs4[UO2(CO 3)3]

被引：0
作者：
Krivovichev S.V. [1 ]
Burns P.C. [2 ]
机构：
[1] St. Petersburg State University, St. Petersburg
[2] University of Notre Dame, Notre Dame, IN
来源：
Radiochemistry | 2004年 / 46卷 / 1期
基金：
俄罗斯基础研究基金会;
关键词：
Reflection; Physical Chemistry; Aqueous Solution; Evaporation; Crystal Structure;
D O I：
10.1023/B:RACH.0000024627.56487.31
中图分类号：
学科分类号：
摘要：
Light green transparent crystals of Cs4[UO2(CO 3)3] were prepared by evaporation from aqueous solutions. The crystal structure was refined to R1 = 0.039 (wR2 = 0.081) for 2311 reflections with |Fhkl|≥4σ|Fhkl|. Monoclinic system, space group C2/c, a = 11.5131(9), b = 9.6037(8), c = 12.9177(10) Å, β = 93.767(2)°, V = 1425.2(2) Å3. The structure of Cs4[UO2(CO3)3] consists of isolated complex ions [UO2(CO3) 3]4- formed by uranyl cation UO22+ and three CO32- groups. The equatorial planes of the [UO2(CO3)3]4- ions are approximately parallel to the (201) plane. The nine-coordinate Cs+ cations are located between the complex anions. The compound is isostructural with M 4[UO2(CO3)3] with M = K, NH 4, and Tl, but not isostructural with Na4[UO 2(CO3)3].
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页码：12 / 15
页数：3
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