Hydrolytically Stable Nanoporous Thorium Mixed Phosphite and Pyrophosphate Framework Generated from Redox-Active Ionothermal Reactions

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• 作者：Daxiang Gui ; Tao Zheng ; Lanhua Chen ; Yanlong Wang ; Yuxiang Li ; Daopeng Sheng ; Juan Diwu ; Zhifang Chai ; Thomas E. Albrecht-Schmitt ; Shuao Wang
• 刊名：Inorganic Chemistry
• 出版年：2016
• 出版时间：April 18, 2016
• 年：2016
• 卷：55
• 期：8
• 页码：3721-3723
• 全文大小：247K
• 年卷期：0
• ISSN：1520-510X

文摘

The first thorium framework compound with mixed-valent phosphorus-based (phosphite and pyrophosphate) ligands, [BMMim]₂[Th₃(PO₃)₄(H₂P₂O₇)₃] (ThP-1), was synthesized by ionothermal reactions concurrent with the partial oxidation of phosphoric acid. The overall structural topology of ThP-1 highly resembles that of MOF-5, containing only one type of three-dimensional channels with a window size of 11.32 Å × 11.32 Å. ThP-1 has a free void volume of 50.8%, making it one of the most porous purely inorganic actinide-based framework materials. More importantly, ThP-1 is highly stable in aqueous solutions over an extremely wide pH range from 1 to 14 and thus may find potential applications in selective ion exchange and catalysis.