| 缺位的Wells-Dawson型磷钨酸盐和Eu(Ⅲ)构筑的一维链状多金属氧酸盐化合物 |
| A Polyoxometalate Compound with 1D Chain Built up of Lacunary Wells-Dawson Polyoxotungstate and Eu(Ⅲ) |
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| 摘要: 在水溶液条件下以六缺位的[H2P2W12O48)]12-和Eu(Ⅲ)为反应前躯体得到了1个新的多金属氧酸盐化合物[Eu3(H2O)17(α2-HP2W17O61)]·5H2O (1)，对其进行了元素分析、红外光谱、热重、荧光等表征，并用X-射线单晶衍射测定了它的晶体结构。化合物1含有双支撑的多阴离子簇 [{Eu(H2O)7}2{Eu(H2O)3(α2-P2W17)}2]8-，并进一步通过Eu(Ⅲ)连接形成了延c轴方向的一维链。室温条件下的荧光光谱研究表明：化合物1显示了强的红光发射。 |
| 关键词: 多金属氧酸盐 晶体结构 双支撑多阴离子簇 荧光性质 |
| 基金项目: |
| Abstract: A polyoxometalate compound built on lacunary Wells-Dawson polyoxotungstate and Eu(Ⅲ) cation,[Eu3(H2O)17(α2-HP2W17O61)]·5H2O (1), has been synthesized by conventional solution method and characterized by elemental analysis, IR spectroscopy and single crystal X-ray diffraction. Compound 1 shows a bisupporting polyoxometalate cluster structure where two {Eu(H2O)7}23+ fragments are supported on the polyoxometalate [{Eu(H2O)3(α2-P2W17)}2]14-.1 displays a 1D chain structure built up of bisupporting polyoxoanions [{Eu(H2O)7}2{Eu(H2O)3(α2-P2W17)}2]8- and Eu(Ⅲ) ions. Photoluminescence measurement reveals that 1 exhibits red fluorescent emission at room temperature. CSD: 423050. |
| Keywords: polyoxometalates crystal structure bisupporting polyanion cluster fluorescence properties |
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| 孙 岳,张先徽,那延祥,冯克成.缺位的Wells-Dawson型磷钨酸盐和Eu(Ⅲ)构筑的一维链状多金属氧酸盐化合物[J].无机化学学报,2011,27(8):1596-1600. |
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