| 采用离子热方法合成夹心型钨磷酸盐 |
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| 引用本文： | 陈宝旺,陈维林,孟靖昕,傅海,李阳光,王恩波.采用离子热方法合成夹心型钨磷酸盐[J].科学通报,2011,56(9):629-634. |
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| 作者姓名： | 陈宝旺 陈维林 孟靖昕 傅海 李阳光 王恩波 |
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| 作者单位： | 多酸科学教育部重点实验室东北师范大学化学学院; |
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| 基金项目： | 国家自然科学基金(20701005); 东北师范大学测试基金资助项目 |
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| 摘 要： | 采用离子热方法在离子液体Emim]Br(1-乙基-3-甲基咪唑溴盐)中合成了夹心型的钨磷 酸盐H3(Emim)7Ni4(Mim)2(PW9O34)2]·4H2O(1)(Mim 为乙基咪唑). 通过X 射线衍射、元素分析、 红外光谱、热重、XRD、电化学和光催化等对该化合物的结构和性质进行了测试和表征. X 射 线单晶衍射分析表明: 化合物1 属单斜晶系, C2/c 空间群, 晶胞参数: a = 35.584(7) Å, b = 14.513(3) Å, c = 24.423(5) Å, α= 90.000°, β= 101.38(3)°, γ= 90.000°, V = 12365(4) Å3, Z = 4. 在化 合物1 的晶体结构中, 阴离子框架为2 个乙基咪唑分子修饰的有机无机杂化夹心型阴离 子Ni4(Mim)2(PW9O34)2]10-, 而且多酸阴离子的表面氧原子与游离的抗衡阳离子1-乙基-3-甲基 咪唑之间存在着广泛的C-H···O 氢键作用, 进而构筑成为一个三维的超分子框架.
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| 关 键 词： | 离子热合成 夹心型多酸 超分子 电化学 光催化 |
| 收稿时间： | 2010-10-23 |
Ionothermally synthesized sandwich-type phosphotungstate |
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| CHEN BaoWang,CHEN WeiLin,MENG JingXin,FU Hai,LI YangGuang & WANG EnBo Key Laboratory of Polyoxometalate Science of Ministry of Education.Ionothermally synthesized sandwich-type phosphotungstate[J].Chinese Science Bulletin,2011,56(9):629-634. |
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| Authors: | CHEN BaoWang CHEN WeiLin MENG JingXin FU Hai LI YangGuang & WANG EnBo Key Laboratory of Polyoxometalate Science of Ministry of Education |
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| Institution: | CHEN BaoWang,CHEN WeiLin,MENG JingXin,FU Hai,LI YangGuang & WANG EnBo Key Laboratory of Polyoxometalate Science of Ministry of Education,Department of Chemistry,Northeast Normal University,Jilin 130024,China |
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| Abstract: | A new sandwich-type phosphotungstate compound, H3(Emim)7Ni4(Mim)2(PW9034)2]·4H2O, was successfully synthesized. We used the ionothermal method with 1-ethyl-3-methyl imidazolium bromide (Emim]Br) ionic liquids (ILs) to synthesize the compound. We characterized the material using X-ray diffraction, elemental analysis, infrared spectroscopy, thermogravimetric analyses, electrochemistry and photocatalysis. The crystal state of the sandwich-type phosphotungstate was: Monoclinic; space group C2/c; a = 35.584(7) Å; b = 14.513(3) Å; c = 24.423(5) Å; α= 90.000°; β= 101.38(3)°; γ= 90.000°; V = 12365(4) Å3; and Z = 4. The polyoxoanion of the sandwich-type phosphotungstate is two methylimidazole molecules and a modified sandwich-type hybrid tungstophosphate Ni4(Mim)2(PW9034)2]10- In the packing arrangement, the adjacent hybrid polyoxoanions of the compound are connected through C-H-O hydrogen bonds between the dissociative Emim]+ cations and the surface oxygen atoms of the polyoxoanions. This structure forms a three-dimensional open-framework. |
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| Keywords: | ionothermal synthesis sandwich-type polyoxometalates supermolecule electrochemistry photocatalysis |
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