高等学校化学学报

高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (7): 1166.

• 研究简报 • 上一篇    下一篇

新的四帽Keggin结构的金属-氧簇合物[NiMo12O40H10{Ni(H2O)3}4]的水热合成与结构表征

苏畅, 徐吉庆, 曾庆新, 崔小兵, 李传碧, 张丽娟   

  1. 吉林大学化学学院, 无机合成与制备化学国家重点实验室, 长春 130023
  • 收稿日期:2002-08-23 出版日期:2003-07-24 发布日期:2003-07-24
  • 通讯作者: 徐吉庆(1937年出生),男,教授,博士生导师,从事功能簇合物材料及生物酶的化学模拟研究.E-mail:xjq@jlu.edu.cn E-mail:xjq@jlu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20271021)资助

Hydrothermal Synthesis and Structure Characterization of a New Four-capped Metal-oxygen Cluster [NiMo12O40H10{Ni(H2O)3}4]

SU Chang, XU Ji-Qing, ZENG Qing-Xin, CUI Xiao-Bing, LI Chuan-Bi, ZHANG Li-Juan   

  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130023, China
  • Received:2002-08-23 Online:2003-07-24 Published:2003-07-24

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关键词: 钼镍氧簇, 四帽Keggin结构, 水热合成

Abstract: A Hydrothermal reaction of MoO3, NiCl2·6H2O, WO3 and H2O with a molar ratio of 1:0.6:1:83.3 gives a rhombic-shaped black crystal [NiMo12O40H10{Ni(H2O)3}4]. It crystallizes in a tetragonal system with space group I41/amd and unit cell parameters a=b=1.518 4(2) nm, c=3.082 9(6) nm, Z=4, V=7.108(2) nm3, R=0.067 1, wR=0.217 8. The compound possesses a four-capped Keggin structure. The structure of the Keggin-[NiMo12O40H10]8- consists of twelve MoO6 octahedrons and a NiO4 tetrahedron on the center. Four [Ni(H2O)3]2+ at the cap positions are linked to Keggin-structure by three μ 3-O, respectively. The calculation of bond valence shows that the oxidation state of Mo in the compound is +5.

Key words: Molybdenum-nickel-oxo cluster, Four-capped Keggin structure, Hydrothermal synthesis

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