高等学校化学学报

高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (4): 458.

• 研究论文 • 上一篇    下一篇

α-和β-三钒九钨锗酸钾的合成和表征

陈亚光, 瞿伦玉, 彭军, 于明   

  1. 东北师范大学化学系, 长春 130024
  • 收稿日期:1992-08-14 修回日期:1992-10-29 出版日期:1993-04-24 发布日期:1993-04-24
  • 通讯作者: 陈亚光
  • 基金资助:

    国家自然科学基金

Synthesis and Characterization of Potassium α-and βTrivanadononatungstogermanate

CHEN Ya-Guang, QU Lun-Yu, PENG Jun, YU Ming   

  1. Department of Chemistry, Northeast Normal Uaitvrsity, Changchnn, 130024
  • Received:1992-08-14 Revised:1992-10-29 Online:1993-04-24 Published:1993-04-24

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摘要： 合成了α-和β-三钒九钨锗酸钾,并用元素分析、红外光谱和紫外光谱、51V和183W核磁共振、极谱和循环伏安、热分析及单晶衍射等方法进行了表征。结果表明,这些新化合物具有与GeW12相似的结构;3个钒原子属于不同的M3O13单元且彼此共角相连。与钨锗酸盐相比,三钒取代的钨钒锗酸钾的热稳定性降低而氧化性增强。

关键词: 三取代杂多化合物, 三钒九钨锗酸盐, 合成, 表征

Abstract: Potassium α-and β-trivanadononatungstogermanates were prepared and characterized by elementary analysis, IR, UV, 51Vand 183W NMRspectra, polarography, TG-DTAthermal analysis, and single crystal X-ray diffraction analysis.The results show that these new compounds have Keggin anion structures, in which three Vatoms belong to three different M3O13 units and link to each other by sharing a oxygen atom.The α-isomer is A-type structure and has a little stronger oxidation ability than the β-isomer.In comparison with GeW12, the thermal stabilities of substituted heteropoly compounds GeW9V3decrease and their oxidation abilities increase greatly.

Key words: Trisubsttuted heteropoly compound, Trivanadononatungstogermanate, Synthesis, Characterization

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