| Synthesis,Characterization and Crystal Structure of an Inorganic-organic Composite Metatungstate:[Co(4,4′-bipy)_2(H_2O)_4](4,4′-H_2bipy)_2[H_2W_(12)O_(40)]·5.5H_2O |
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| 引用本文： | 周大鹏,任请,赵俊伟,王敬平.Synthesis,Characterization and Crystal Structure of an Inorganic-organic Composite Metatungstate:[Co(4,4′-bipy)_2(H_2O)_4](4,4′-H_2bipy)_2[H_2W_(12)O_(40)]·5.5H_2O[J].结构化学,2007(11). |
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| 作者姓名： | 周大鹏 任请 赵俊伟 王敬平 |
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| 作者单位： | Institute of Molecule and Crystal Engineering College of Chemistry and Chemical Engineering，Henan University，Institute of Molecule and Crystal Engineering，College of Chemistry and Chemical Engineering，Henan University，Institute of Molecule and Crystal Engineering，College of Chemistry and Chemical Engineering，Henan University，Institute of Molecule and Crystal Engineering，College of Chemistry and Chemical Engineering，Henan University，Kaifeng，Henan 475001，China，Kaifeng，Henan 475001，China，Kaifeng，Henan 475001，China，Kaifeng，Henan 475001，China |
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| 基金项目： | the Program for New Century Excellent Talent in University of Henan Province，the Foundation of Educational Department of Henan Province，the Natural Science Foundation of Henan Province，the Natural Science Foundation of Henan University |
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| 摘 要： | A novel hybrid compound Co(4,4'-bipy)2(H2O)4](4,4'-H2bipy)2H2W12O40]·5.5H2O has been synthesized from an acidified aqueous solution and characterized by elemental and thermal analyses,IR and UV spectroscopy,and single-crystal X-ray structure determination. Structure analysis indicates that the title compound is of monoclinic,space group C2/c,with a=21.315(9),b=15.303 (7),c=24.139(10),β=105.170(5)o,V=7599(6)3,Mr=3706.99,Z=4,F(000)=6616,Dc=3.231,μ=18.395 mm-1,R=0.0652 and wR=0.1594. X-ray crystallographic study shows that the title compound consists of one Co(4,4'-bipy)2(H2O)4]2+ cation,two diprotonated 4,4'-bipyridine molecules,5.5 water molecules of crystallization,and one metatungstate polyoxoanion H2W12O40]6-,which approaches an effective Td point symmetry. TG-DTA analysis indicates that the framework of the metatungstate polyoxoanion is collapsed at 587.0 ℃.
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