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基于Keggin 型多酸和金属有机配合物的超分子化合物
引用本文:赵岷,王秀丽,李锦,胡海良,林宏艳. 基于Keggin 型多酸和金属有机配合物的超分子化合物[J]. 科学通报, 2011, 56(9): 658-663. DOI: 10.1360/972010-1982
作者姓名:赵岷  王秀丽  李锦  胡海良  林宏艳
作者单位:渤海大学化学化工学院;
基金项目:国家自然科学基金(20871022); 辽宁省优秀人才支持计划(2009R03)资助项目
摘    要:
利用水热技术合成了一种新的基于 Keggin 型多酸阴离子和非线性二唑衍生物的金 属有机配合物阳离子的超分子化合物[Cu2(HL)7(H2O)2(SiW12O40)3]·(H2L)0.5·20.5H2O (1) (L=2-(3-吡啶基)-5-(4-吡啶基)-1,3,4-噁二唑), 通过X 射线单晶衍射、红外光谱、热重等对其 结构进行了表征, 并研究了其体修饰碳糊电极在1 mol/L H2SO4 溶液中的电化学行为. 结果 表明, 该化合物属于单斜晶系, C2/c 空间群, 其基本构筑单元是 Keggin 型SiW12O404-阴离 子、[Cu2(HL)7(H2O)2]11+金属有机配合物阳离子、游离的质子化的L 配体和水分子. 化合物 1 具有良好的电化学和电催化性质.

关 键 词:多金属氧酸盐  超分子化合物  金属有机配合物  水热合成  电催化
收稿时间:2010-10-25

Supramolecular compound based on Keggin-type polyoxometalate and metal-organic complex
ZHAO Min,WANG XiuLi,LI Jin,HU HaiLiang , LIN HongYan Faculty of Chemistry , Chemical Engineering,Bohai University,Jinzhou ,China. Supramolecular compound based on Keggin-type polyoxometalate and metal-organic complex[J]. Chinese Science Bulletin, 2011, 56(9): 658-663. DOI: 10.1360/972010-1982
Authors:ZHAO Min  WANG XiuLi  LI Jin  HU HaiLiang & LIN HongYan Faculty of Chemistry    Chemical Engineering  Bohai University  Jinzhou   China
Affiliation:ZHAO Min,WANG XiuLi,LI Jin,HU HaiLiang & LIN HongYan Faculty of Chemistry and Chemical Engineering,Bohai University,Jinzhou 121000,China
Abstract:
A supramolecular compound, [Cu2(HL)7(H2O)2(SiW12O40)3]·(H2L)0.5·20.5H2O, based on Keggin-type polyoxometalate anions and metal-organic cations and non-linear 1,3,4-oxadiazole derivatives was obtained via hydrothermal reactions. We structurally characterized the compound using infrared spectroscopy, thermogravimetric analysis and single-crystal X-ray diffraction. The electrochemical properties of a bulk modified carbon-paste electrode based on the supramolecular compound were studied in 1 mol/L H2SO4 aqueous solution. The results indicate that the compound is a monoclinic system with a C2/c space group. The basic building blocks of the compound are Keggin-type SiW12O404-anions; metal-organic units, [Cu2(HL)7(H2O)2]11+; a discrete protonated ligand, 2-(3-pyridyl)-5-(4-pyridyl)-1,3,4-oxadiazole; and water molecules. The supramolecular compound has a high level of electrocatalytic activity.
Keywords:polyoxometalates  supramolecular compound  metal-organic complex  hydrothermal synthesis  electrocatalysis  
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