高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

由Mn2+连接仲钨酸盐[H2W12O42]10-构成一维梯型链状多金属氧酸盐

甘雄1,2, 张志明1, 王恩波1   

    1. 多酸科学教育部重点实验室, 东北师范大学化学学院, 长春 130024;
    2. 钦州学院生物与化学系, 钦州 535000
  • 收稿日期:2007-04-28 修回日期:1900-01-01 出版日期:2007-12-10 发布日期:2007-12-10
  • 通讯作者: 王恩波

New 1D Ladder-Like Chain Polyoxometalate Consisting of the Paradodecatungstate Linked by Mn2+ Ions

GAN Xiong1,2, ZHANG Zhi-Ming1, WANG En-Bo1*   

    1. Key Laboratory of Polyoxometalate Science of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun 130024, China;
    2. Department of the Biology and Chemistry, Qinzhou College, Qinzhou 535000, China
  • Received:2007-04-28 Revised:1900-01-01 Online:2007-12-10 Published:2007-12-10
  • Contact: WANG En-Bo

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摘要： 利用Na2WO4·2H2O与MnCl2反应, 合成了一个结构新颖的一维梯型链状的多金属钨酸盐K6[Mn2(H2O)8(H2W12O42)]·14.5H2O(1), 并通过元素分析、红外光谱、热重分析、紫外光谱、电化学和X射线单晶衍射对其进行了表征. 结果表明, 该化合物属于单斜晶系, P2(1)/n空间群，晶胞参数a=1.5042(3) nm, b=1.0462(2) nm, c=1.8843(4) nm, β=93.55(3)°, V=2.9594(10) nm3, Z=2. 该化合物具有由同多酸盐和Mn2+离子构筑的一维梯型链状结构.

关键词: 多金属氧酸盐, 晶体结构, 锰, 仲钨酸盐

Abstract: A new 1D ladder-like chain polyoxotungstate K6[Mn2(H2O)8(H2W12O42)]·14.5H2O(1) was synthesized in aqueous solution and characterized by elemental analysis, IR spectroscopy, TG analysis, UV, CV and single crystal X-ray diffraction. The interesting characteristics of compound 1 show that the paradodecatungstate [H2W12O42]10- anions are linked by Mn2+ ions forming a ladder-like one-dimensional chainlike structure, which is connected by K+ ions a 3D framework. The oxidation states of W and Mn sites in this compound are determined to be +6 and +2, respectively.

Key words: Polyoxometalates, Crystal structure, Manganese, Paradodecatungstate

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