Half-Open Hollow Cages of Pentadecavanadate and Hexadecavanadate Compounds with Large -O−V−O−V- Windows

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• 作者：Lian Chen ; Feilong Jiang ; Mingyan Wu ; Ning Li ; Wentao Xu ; Chunfeng Yan ; Chengyang Yue ; Maochun Hong
• 刊名：Crystal Growth & Design
• 出版年：2008
• 出版时间：November 5, 2008
• 年：2008
• 卷：8
• 期：11
• 页码：4092-4099
• 全文大小：307K
• 年卷期：v.8,no.11(November 5, 2008)
• ISSN：1528-7505

文摘

Five new polyoxovanadate-based cluster compounds, (Et₄N)₄[HV₁₅O₃₉(acac)Cl]·3CH₃CN (1), (Et₄N)₅[V₁₆O₄₀X] (X = Br 2a; X = Cl 2b), (Me₂NH₂)₈[H₂V₁₆O₄₂(ClO₄)]·4H₂O (3), and (Me₂NH₂)₂(Et₄N)₂[H₂V₁₀O₂₈] (4), having different types of vanadium oxide shells are isolated in organic media. Compounds 1−3 are hollow structures with different encapsulated anions in their centers. The surfaces of four compounds are constituted by vanadium and oxygen atoms, showing large 10-membered -O−V−O−V- rings and/or eight-membered -O−V−O−V- rings, which distinguish vanadium-oxide clusters from the common hollow clusters built up with closed surfaces.