Chemical Research in Chinese Universities ›› 2010, Vol. 26 ›› Issue (5): 683-686.

• Articles • Previous Articles     Next Articles

Three New Polyoxometalates Derivatives Decorated by Phenanthroline and Transition-metal Cations(M=ZnII, CoII, NiII)

ZHANG Yong-feng, JIA Yan-yan, NIE Hai-liang, YAN Xing-juan, WANG Li and HUANG Ru-dan*   

  1. Department of Chemistry, Beijing Institute of Technology, Beijing 100081, P. R. China
  • Received:2009-10-29 Revised:2010-03-09 Online:2010-09-25 Published:2010-11-26
  • Contact: HUANG Ru-dan. E-mail: huangrd@bit.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos.20771013, 20476011 and 20371007).

Abstract: Three new Keggin polyoxometalates, [Zn(phen)3]2[SiW12O40]·5H2O(1), [Co(phen)3]2[SiW12O40](2) and [Ni(phen)3]2[SiW12O40]·2H2O(3)(phen=1,10'-phenanthroline) have been hydrothermally synthesized and characterized by elemental analysis, IR, crystal X-ray diffraction, thermogravimetric analyses(TGA) and fluorescence techniques. Complex 1, crystallized in the triclinic space group P1??, consists of one [SiW12O40]4– anion, two discrete [Zn(phen)3]2+ cations and five crystal water molecules. Complexes 2 and 3 have the similar configuration to complex 1, but they crystallized in the monoclinic space group C2/c. Variable-temperature magnetic susceptibilities of complexess 2 and 3 reveal antiferromagnetism and ferromagnetism, respectively.

Key words: Polyoxometalate, Phen, Organic-inorganic compound, Hydrothermal synthesis