A New Keggin Tungstocobaltate Decorated by Zinc(II) Complex Groups: [Zn(2,2 '-bipy)(3)](3){[Zn(2,2 '-bipy)(2)(H2O)](2)-[HCoW12O40](2)}center dot H2O

作者：Wang Hong^*; Cheng Cungui; Tian Yumei

来源：Chinese Journal of Chemistry, 2009, 27(6): 1099-1102.

• polyoxometalate
• tungstocobaltate
• zinc(II) coordination group
• photoluminescence

A new organic-inorganic hybrid compound based on Keggin tungstocobaltate decorated by zinc(II) coordination groups, [Zn(2,2'-bipy)(3)](3){[Zn(2,2'-bipy)(2)(H2O)](2)-[HCoW12O40](2)}center dot H2O (bipy=bipyridine), has been synthesized under hydrothermal conditions and characterized by elemental analyses, IR, TG analyses and X-ray single crystal diffraction. This compound crystallizes in the orthorhombic system, space group C2/c with a=46.966(9) angstrom, b=14.358(3) angstrom, c=26.154(5) angstrom, alpha=beta=gamma=90 degrees, V=17637(6) angstrom(3), and Z=4. The result of structure determination shows that the crystal structure is constructed from a mono-supporting Keggin tungstocobaltate polyanion {[Zn(2,2'-bipy)(2)(H2O)](2)[HCoW12O40](2)}(6-), three [Zn(2,2'-bipy)(3)](2+) cations and one water molecule. It is interesting that [Zn(1)(2,2'-bipy)(3)](2+) cations are held together into a helix chain through hydrogen-bonding interactions. Additionally, the compound is stable in air and shows intense photoluminescence at room temperature.

• 出版日期2009-6
• 单位浙江师范大学