A Polyoxometalate Compound with 1D Chain Built up of Lacunary Wells-Dawson Polyoxotungstate and Eu(III)

作者：Sun Yue; Zhang Xian Hui; Na Yan Xiang; Feng Ke Cheng^*

来源：Chinese Journal of Inorganic Chemistry, 2011, 27(8): 1596-1600.

• polyoxometalates
• crystal structure
• bisupporting polyanion cluster
• fluorescence properties

A polyoxometalate compound built on lacunary Wells-Dawson polyoxotungstate and Eu(III) cation, [Eu(3)(H(2)O)(17)(alpha(2)-HP(2)W(17)O(61))]center dot 5H(2)O (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(H(2)O)(7)}(2)(3+) fragments are supported on the polyoxometalate [{Eu(H(2)O)(3)(alpha(2)-P(2)W(17))}(2)](14-). 1 displays a ID chain structure built up of bisupporting polyoxoanions [{Eu(H(2)O)(7)}(2){Eu(H(2)O)(3)(alpha(2)-P(2)W(17))}(2)](8-) and Eu(III) ions. Photoluminescence measurement reveals that 1 exhibits red fluorescent emission at room temperature. CSD: 423050.

• 出版日期2011-8
• 单位厦门大学; 长春大学