高等学校化学学报

高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (5): 1047.doi: 10.7503/cjcu20121065

• 研究论文: 无机化学 • 上一篇    下一篇

三维结构多金属氧酸盐Ag4H3PTi2W10O40·16H2O的合成与表征

王雪娜, 刘术侠, 李书军, 谢瑞红, 张鑫, 刘艺伟   

  1. 东北师范大学化学学院, 多酸化学研究所, 长春 130024
  • 收稿日期:2012-11-26 出版日期:2013-05-10 发布日期:2013-05-10
  • 通讯作者: 刘术侠, 女, 博士, 教授, 博士生导师, 主要从事多酸化学研究. E-mail: liusx@nenu.edu.cn E-mail:liusx@nenu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 21171032, 21231002)资助.

Synthesis and Characterization of a New Three-dimensional Polyoxometalate Ag4H3PTi2W10O40·16H2O

WANG Xue-Na, LIU Shu-Xia, LI Shu-Jun, XIE Rui-Hong, ZHANG Xin, LIU Yi-Wei   

  1. Institute of Polyoxometalates Chemistry, College of Chemistry, Northeast Normal University, Changchun 130024, China
  • Received:2012-11-26 Online:2013-05-10 Published:2013-05-10
  • Contact: Shuxia Liu E-mail:liusx@nenu.edu.cn

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摘要：

以Keggin型钛取代钨磷酸钾和醋酸银为反应物合成了1个新的多金属氧酸盐Ag4H3PTi2W10O40·516H2O(1), 通过X射线单晶衍射分析确定了其晶体结构, 通过ICP分析和热重分析确定了其组成, 通过红外光谱和固体漫反射光谱表征了其性质. 单晶结构分析表明, 化合物1属于四方晶系, I4/m空间群, 晶胞参数a=b=1.39905(13) nm, c=1.14358(18) nm, V=2.2384(5) nm3, Z=2, R1=0.0550, wR2=0.1590. 化合物1中的Ag+均为六配位, 每个Ag+同时与3个多阴离子上的2个端氧和4个桥氧配位形成{AgO6}单元, 这些{AgO6}将该多阴离子连接成三维网络结构.

关键词: Keggin型, 钛取代钨磷酸盐, 银

Abstract:

A new polyoxometalate compound, Ag4H3PTi2W10O40·16H2O(1), was synthesized with Keggin-type potassium dititanodecatungstophosphate and silver acetate as raw materials. The produet was characterized by thermogravimetric analysis(TGA), infrared spectrum(IR), and solid diffuse reflectance spectrum(DRS). Single crystal X-ray diffraction shows that {AgO6} units in compound 1 bridge [H3PTi2W10O40]4-, leading to the formation of a two-dimensional layer structure parallel to ab-plane. And the two-dimensional layer can be further extended to three-dimensional network structure. Besides, DRS analysis indicates that compound 1 can absorb visible light and may be an excellent photocatalytic material.

Key words: Keggin-type, Titanium-substituted tungstophosphate, Silver

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