| Synthesis and Characterization of the Molybdenum－Tungsten Mixed－metal Oxopolymetalate（Et_4N）_2［Mo_（4．5）W_（1．5）O_（19）］ |
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| 作者姓名： | Liu Huang Xu Li Huang Xiao-Yin Chen Wen-Dan Huang Jin-Shun |
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| 作者单位： | State Key Laboratory of Structural Chemistry，Fujian Institute of Research onthe Structure of Matter.Chinese Academy of Sciences，Fuzhou，350002 |
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| 摘 要： | ＳｙｎｔｈｅｓｉｓａｎｄＣｈａｒａｃｔｅｒｉｚａｔｉｏｎｏｆｔｈｅＭｏｌｙｂｄｅｎｕｍ－ＴｕｎｇｓｔｅｎＭｉｘｅｄ－ｍｅｔａｌＯｘｏｐｏｌｙｍｅｔａｌａｔｅ（Ｅｔ_４Ｎ）_２［Ｍｏ_（４．５）Ｗ_（１．５）Ｏ_（１９）］ＬｉｕＨｕａｎｇ；ＸｕＬｉ；Ｈｕａ?..
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Synthesis and Characterization of the Molybdenum-Tungsten Mixed-metal Oxopolymetalate(Et_4N)_2[Mo_(4.5)W_(1.5)O_(19)] |
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| Liu Huang,Xu Li,Huang Xiao-Yin,Chen Wen-Dan, Huang Jin-Shun.Synthesis and Characterization of the Molybdenum-Tungsten Mixed-metal Oxopolymetalate(Et_4N)_2[Mo_(4.5)W_(1.5)O_(19)][J].Chinese Journal of Structural Chemistry,1995(1). |
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| Authors: | Liu Huang Xu Li Huang Xiao-Yin Chen Wen-Dan Huang Jin-Shun |
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| Abstract: | Molybdenum-tungsten mixed-metal oxopolymetalate(Et.N)2Mo4.5W,1.5O19] has been synthesized and characterized by a complete X-ray crystallographic structure determination and a variety of physical measurements.The crystal is tetragonal,space group P4/mnc, with a= 10.771(5),c=14.245(4) A,V=1653(1 3 A 3,Dc=2.56 g/cm3,Z=2,Mr=1272.0,λ(MoKα)=0.71069 A,F(000)=1204,μ=70.04 cm-1,final R=0.043 and Rω=0.052 for 515 reflections with I>3σ(I).In the structure ofM6O19]2-(M6=Mo4.5)anion,six anion,six metal atoms form a regular octahedron with one oxygen atom situated in the center of the octahedron, twelve oxygen atoms disposed in M-O-M units and one terminal oxygen atom attached to each metal atom.The average distance of M-Ot is 1.71 A,while the M-(μ-O) being 1.909 A and M-(μ6-O) being 2. 314 A.The result of CV shows a reversible redox peak at -0.53 V and an irreversible reduced peak at -1.40 V. |
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| Keywords: | synthesis characterization Mo-W mixed-metal oxopolymetalate |
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