A Mixed-Valent Uranium Phosphonate Framework Containing UIV, UV, and UVI

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• 作者：Lanhua Chen ; Dr. Tao Zheng ; Dr. Songsong Bao ; Dr. Linjuan Zhang ; Hsin-Kuan Liu ; Prof. Limin Zheng ; Prof. Jianqiang Wang ; Yaxing Wang ; Prof. Juan Diwu ; Prof. Zhifang Chai ; Prof. Thomas E. Albrecht-Schmitt and Prof. Shuao Wang
• 刊名：Chemistry - A European Journal
• 出版年：2016
• 出版时间：August 16, 2016
• 年：2016
• 卷：22
• 期：34
• 页码：11954-11957
• 全文大小：826K
• ISSN：1521-3765

文摘

It is shown that U^VO₂⁺ ions can reside at U^VIO₂²⁺ lattice sites during mild reduction and crystallization process under solvothermal conditions, yielding a complicated and rare mixed-valent uranium phosphonate compound that simultaneously contains U^IV, U^V, and U^VI. The presence of uranium with three oxidation states was confirmed by various characterization techniques, including X-ray crystallography, X-ray photoelectron, electron paramagnetic resonance, FTIR, UV/Vis-NIR absorption, and synchrotron radiation X-ray absorption spectroscopy, and magnetism measurements.