Published in
American Chemical Society, Crystal Growth and Design, 8(15), p. 3775-3784, 2015
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From Two-Dimensional Layers to Three-Dimensional Frameworks: Expanding the Structural Diversity of Uranyl Compounds by Cation–Cation Interactions
,
Hartmut Schlenz,
Jakob Dellen,
Dirk Bosbach,
Evgeny V. Suleimanov,
Evgeny V. Alekseev
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- Must obtain written permission from Editor
- Must not violate ACS ethical Guidelines
Abstract
Two uranium tungstate compounds, Cs4[(UO2)4(WO5)(W2O8)O2] and Cs4[(UO2)7(WO5)3O3], were isolated by the high-temperature solid-state method. They are structurally related to each other by cation−cation interactions of UO22+. Cs4[(UO2)7(WO5)3O3] can be synthesized directly via adding required UO3 to pure polycrystalline powders of Cs4[(UO2)4(WO5)(W2O8)O2] at 800 °C. The chemical and structural analyses indicate that the cation−cation interactions act as an intermediate part in the two-dimensional → three-dimensional transformation of the uranyl tungstate network.