引用本文:
张春峰, 孙英华. 一种新的二帽Keggin多金属氧酸盐的合成、表征及磁性[J]. 应用化学,
2015, 32(9): 1055-1060.
doi:
10.11944/j.issn.1000-0518.2015.09.150027
Citation: ZHANG Chunfeng, SUN Yinghua. Hydrothermal Synthesis,Structure Characterization and Magnetism Property of a New Bi-capped Keggin Polyoxometalate[J]. Chinese Journal of Applied Chemistry, 2015, 32(9): 1055-1060. doi: 10.11944/j.issn.1000-0518.2015.09.150027
Citation: ZHANG Chunfeng, SUN Yinghua. Hydrothermal Synthesis,Structure Characterization and Magnetism Property of a New Bi-capped Keggin Polyoxometalate[J]. Chinese Journal of Applied Chemistry, 2015, 32(9): 1055-1060. doi: 10.11944/j.issn.1000-0518.2015.09.150027
一种新的二帽Keggin多金属氧酸盐的合成、表征及磁性
摘要:
在水热条件下合成了一种新的二帽二支撑的Keggin型钼钒多金属氧酸盐[Cu(2,2'-bpy)3]{[Cu(2,2'-bpy)2]2HPⅤMo8ⅥV6ⅣO42]}·2H2O(1,bpy=联吡啶),利用元素分析、红外光谱、X射线光电子能谱,粉末和X射线单晶衍射等分析技术对化合物的晶体结构进行了表征。结果表明,该化合物属于单斜晶系,C2/c空间群,a=2.8734(3) nm,b=1.47333(12) nm,c=2.31023(16) nm,β=112.509(5)°,V=9.0351(12) nm3,Z=1,R1=0.0489,wR2=0.1286。化合物的阴离子是二帽α-Keggin结构P/Mo/V多金属氧簇,通过簇阴离子两个钒帽上的端氧分别支撑两个铜过渡金属配合物,化合物簇阴离子,水分子和2,2'-联吡啶分子之间通过π-π和氢键作用形成了三维超分子结构。
English
Hydrothermal Synthesis,Structure Characterization and Magnetism Property of a New Bi-capped Keggin Polyoxometalate
Abstract:
A new bicapped Keggin molybdenum-vanadium polyoxometalate[Cu (2,2'-bpy)3]{[Cu (2,2'-bpy)2]2HPⅤMo8ⅥV6ⅣO42}}·2H2O 1(bpy=bipyridien) was prepared under hydrothermal conditions,and characterized by elemental analysis,IR,X-ray photoelectron spectroscopy,powder and single crystal X-ray diffraction analysis.The compound 1 crystallized in a monoclinic system,with a C2/c space group:a=2.8734(3) nm,b=1.47333(12) nm,c=2.31023(16) nm,β=112.509(5)°,V=9.0351(12) nm3,Z=1,R1=0.0489,wR2=0.1286.The polyoxoanion of compound 1 is a bi-capped P/Mo/V Keggin cluster supporting two copper complexes fragment through the oxygen of capping V atoms of polyoxoanion.Compound 1 exhibits an extended three-dimensional supramolecular network via hydrogen-bonding and π-π stacking interactions between polyoxoanion,water molecules and 2,2'-bpy molecules.
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Key words:
- hydrothermal synthesis
- / Keggin structure
- / supramolecular
- / magnetic properties
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