| 一种具有Keggin结构的固体杂多酸的合成及其晶体结构 |
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| 引用本文： | 魏林恒,王子梁. 一种具有Keggin结构的固体杂多酸的合成及其晶体结构[J]. 化学研究, 2012, 23(4): 19-21 |
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| 作者姓名： | 魏林恒 王子梁 |
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| 作者单位： | 1. 河南大学 环境与规划学院,河南开封,475004
2. 河南大学 化学化工学院,河南开封,475004 |
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| 摘 要： | 以钨酸钠、氯化钴、醋酸钴及1,3-丙二胺为原料,利用水热合成法制备了一种具有Keggin结构的杂多酸H6[CoW12O40].2.5H2O;利用单晶X射线衍射分析了产物的晶体结构.结果表明,产物中的过渡金属Co2+离子作为中心原子与4个氧原子形成CoO4四面体;CoO4四面体被4个W3O13金属簇包围,与每个W3O13金属簇之间通过共顶点连接而形成[CoW12O40]6-阴离子;六个氢离子作为抗衡阳离子,最终形成固体杂多酸分子.
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| 关 键 词： | Keggin结构 杂多酸 水热合成 晶体结构 |
Synthesis and crystal structure of a solid heteropolyacid |
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| WEI Lin-heng , WANG Zi-liang. Synthesis and crystal structure of a solid heteropolyacid[J]. Chemical Research, 2012, 23(4): 19-21 |
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| Authors: | WEI Lin-heng WANG Zi-liang |
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| Affiliation: | 1. College of Environment and Planning, Henan University, Kai f eng 475004, Henan, China College of Chemistry and Chemical Engineering, Henan University, Kai f eng 475004, Henan, China) |
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| Abstract: | A Keggin-type solid heteropolyacid,H6[CoW12O40]·2.5H2O,was hydrothermally prepared from Na2WO4·2H2O,CoCl2,Co（CH3COO）2 and propylene-1,3-diamine as the starting materials in aqueous solution.The crystal structure of as-synthesized product was characterized by single-crystal X-ray diffraction.It has been found that transition metal Co2＋ in as-synthesized product acts as the central atom to coordinate with four O atoms forming a CoO4 tetrahedron which is surrounded by four W3O13 groups via side-sharing,forming [CoW12O40]6-anion.Besides,the six H atoms act as the counter cations giving rise to the molecule of title solid hereropolyacid. |
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| Keywords: | Keggin structure heteropolyacid hydrothermal synthesis crystal structure |
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