An Organic-inorganic Hybrid Sandwich-type Arsenotungstate [H(2)dap](2)H-2[Ni(dap)(2)][Ni(dap)(2)(H2O)(2)][Ni-4(H2O)(2)(B-alpha-(As W9O34)-W-V)(2)]center dot 8H(2)O

作者：Zhao Jun Wei^*; Liu Chen Hong; Chen Li Juan; Ma Peng Tao; Wang Jing Ping

来源：Chinese Journal of Structural Chemistry, 2010, 29(4): 599-607.

• polyoxometalate
• sandwich-type structure
• arsenotungstate

A new organic-inorganic hybrid sandwich-type arsenotungstate[H(2)daP](2)H-2[Ni(dap)(2)] [Ni(dap)(2)(H2O)(2)[Ni-4(H2O)(2)(B-alpha-(AsW9O34)-W-V)(2)]center dot 8H(2)O 1 (dap = 1,2-diaminopropane) has been synthesized by the reaction of Na-6[(As2W21O69)-W-III(H2O)]center dot nH(2)O, NiCl2 center dot 6H(2)O and dap under hydrothermal conditions and structurally characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis and single-crystal X-ray diffraction. 1 crystallizes in the monoclinic space group P2(1)/n with a = 13.5133(19), b = 19.043(3), c = 17.647(2) angstrom, beta = 102.585(2)degrees, V = 4432.0(11) angstrom(3), T = 296(2) K, Z = 2, mu = 25.350 mm(-1), GOOF = 1.058, R = 0.0353 and wR = 0.0838. The molecular unit of 1 consists of two diprotonated [H(2)dap](2+) cations, two protons, one four-coordinate [Ni(dap)(2)](2+) cation, one six-coordinate [Ni(dap)(2)(H2O)(2)](2+) cation, one classic tetra-Ni-II substituted sandwich-type [Ni-4(H2O)(2)(B-alpha-(AsW9O34)-W-V)(2)](10-) polyoxoanion and eight lattice water molecules. Furthermore, some reported different types of transition-metal substituted sandwich-type polyoxoanions are summarized and compared.

• 出版日期2010
• 单位河南大学