NH4[BGe3O8]: A New Borogermanate Framework Made of Infinite-Chain Building Blocks

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• 作者：Ding-Bang Xiong ; Hao-Hong Chen ; Man-Rong Li ; Xin-Xin Yang ; Jing-Tai Zhao
• 刊名：Inorganic Chemistry
• 出版年：2006
• 出版时间：November 13, 2006
• 年：2006
• 卷：45
• 期：23
• 页码：9301 - 9305
• 全文大小：382K
• 年卷期：v.45,no.23(November 13, 2006)
• ISSN：1520-510X

文摘

A new microporous borogermanate NH₄[BGe₃O₈] has been synthesized by a molten boric acid flux method with"reagent" quantities of water in which GeO₂, ethylenediamine, H₂O, and H₃BO₃ (5:8:14:25) were heated togetherat 513 K for 4 days. The structure consists of {Ge₆O₁₈}_n chains, further linked together via BO₄ tetrahedra, forminga three-dimensional open framework with intersecting channel systems including one-dimensional 10-membered-ring (MR) channels. Interestingly, the infinite chains {Ge₆O₁₈}_n as building blocks, built of alternating 4- and 6-MRsmade of vertex-sharing GeO₄ tetrahedra, construct the borogermanate framework. It is noteworthy that the highviscosity of the reactive medium and the quantity of water play important roles in the formation of the compound.