An organic-inorganic compound [Cu（2,2＇-bpy）2][{Cu（2,2＇-bpy）2}2W12O40（H2）]·4H2O （Mr = 4048.00） was prepared from the hydrothermal reaction of Na2WO4.2H2O, CuC12·2H20, 2,2＇-bipyridine （2,2＇-bpy） ...An organic-inorganic compound [Cu（2,2＇-bpy）2][{Cu（2,2＇-bpy）2}2W12O40（H2）]·4H2O （Mr = 4048.00） was prepared from the hydrothermal reaction of Na2WO4.2H2O, CuC12·2H20, 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）^o, V= 8365.0（6）A3, Dc= 3.214 g/cm^3, Z = 4μ（MoKct） = 17.269mm^-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 〉 2a（I）. Single-crystal X-ray diffraction reveals that the structure is composed of [（Cu（2,2＇-bpy）2}2W12040（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.展开更多
基金This work was supported by the Natural Science Foundation of Fujian Province (No. E0420001) and NCETFJ.
文摘An organic-inorganic compound [Cu（2,2＇-bpy）2][{Cu（2,2＇-bpy）2}2W12O40（H2）]·4H2O （Mr = 4048.00） was prepared from the hydrothermal reaction of Na2WO4.2H2O, CuC12·2H20, 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）^o, V= 8365.0（6）A3, Dc= 3.214 g/cm^3, Z = 4μ（MoKct） = 17.269mm^-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 〉 2a（I）. Single-crystal X-ray diffraction reveals that the structure is composed of [（Cu（2,2＇-bpy）2}2W12040（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.
