| Synthesis, Structure and Characterization of [Cu(2,2'-bpy)2][{Cu(2,2'-bpy)2}2W12O40(H2)]·4H2O |
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| 作者单位： | HE Li-Wen（College of Materials Science and Engineering,Huaqiao University, Quanzhou 362021, China） ;
LIN Bi-Zhou（College of Materials Science and Engineering,Huaqiao University, Quanzhou 362021, China） ;
LIU Xue-Zhong（College of Materials Science and Engineering,Huaqiao University, Quanzhou 362021, China） ;
HUANG Xiu-Feng（College of Materials Science and Engineering,Huaqiao University, Quanzhou 362021, China） ;
BAI Ling（College of Materials Science and Engineering,Huaqiao University, Quanzhou 362021, China） ; |
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| 基金项目： | This work was supported by the Natural Science Foundation of Fujian Province (No. E0420001) and NCETFJ. |
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| 摘 要： | An organic-inorganic compound Cu(2,2'-bpy)2]{Cu(2,2'-bpy)2}2W12O4o(H2)]·4H2O (Mr = 4048.00) was prepared from the hydrothermal reaction of Na2WO4·2H2O, CuCl2·2H2O,2,2'-bipyridine (2,2'-bpy) and H2O at 160 ℃ for 4 days. The compound crystallizes in the monoclinic system, space group P21/n with a = 18.9196(8), b = 20.4212(8), c = 21.8129(9)(A), β=96.992(3)°, V= 8365.0(6) (A)3, Dc= 3.214 g/cm3, Z = 4,μ(MoKα) = 17.269 mm-1 and F(000) = 7324.Of the 119837 total reflections, 17315 were unique (Rint = 0.0489). The final R = 0.0385 and wR =0.0770 for 11142 observed reflections with I ＞ 2σ(I). Single-crystal X-ray diffraction reveals that the structure is composed of {Cu(2,2'-bpy)2}2W12O40(H2)]2- anions, discrete Cu(2,2'-bpy)2]2 cations and lattice water molecules, and the anion is made up of a {W12O40(H2)}6- α-Keggin core decorated with two {Cu(2,2'-bpy)2}2 groups through bridging oxygen atoms.
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