CRCU

Chemical Research in Chinese Universities ›› 2004, Vol. 20 ›› Issue (1): 10-14.

• Articles • Previous Articles     Next Articles

Hydrothermal Synthesis and Characterization of a Novel Two-dimensional Framework Materials Constructed from Polyoxometalate and Coordination Groups: [H2Mo5.5V10.5O40(PO4)][Cu(en)2]4·7H2O

CUI Xiao-bing1, ZHENG Shou-tian1, SUN Yan-qiong1, YANG Guo-yu1,2   

  1. 1. Coordination and Hydrothermal Chemistry Group, State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China;
    2. State Key Laboratory of Coordination Chemistry, Najing University, Nanjing 210093, P. R. China
  • Received:2002-12-13 Online:2004-02-24 Published:2011-08-06
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.20271050 and 20171045), the Ministry of Finance of China and the Talents Program of Chinese Academy of Sciences.

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Abstract: A novel compound [H2Mo5.5V10.5O40(PO4)][Cu(en)2]4·7H2O(1) was synthesized from V2O5, MoO3, CuCl2·2H2O, en, H3PO4 and H2O in an aqueous solution via the hydrothermal method and characterized by means of single-crystal X-ray diffraction, elemental analyses, IR, EPR spectra and thermal analyses. C16H80Cu4Mo5.5N16O51PV10.5 crystallized in a triclinic system, the space group is P1 with M=2660.63, a=1.283590(10) nm, b=1.289910(10) nm, c=1.387870(10) nm, V=1.80942(2) nm3, Z=2, Dx=4.883 g/cm3, F(000)=2599, μ=6.956 mm-1, (Δ/σ)=0.000, S=1.089. The crystal structure was solved by the direct methods with the final R=0.0752 and wR=0.1988 for 6311 observed reflections with I≥2σ(I). The X-ray crystallography reveals that compound 1 is a novel two-dimensional framework material constructed from the mixed Mo/V polyoxometalate and coordination groups.

Key words: Hydrothermal synthesis, Two-dimensional framework, Mixed Mo/V tetra-capped pseudo-Keggin structure, Polyoxometalate