| 铜配合物修饰的Dawson型钨磷酸盐的合成、晶体结构和催化性能 |
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| 引用本文： | 朱浩天,李晓辉,白建萍,卢明达,安悦,由万胜.铜配合物修饰的Dawson型钨磷酸盐的合成、晶体结构和催化性能[J].应用化学,2015,32(4):433-441. |
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| 作者姓名： | 朱浩天 李晓辉 白建萍 卢明达 安悦 由万胜 |
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| 作者单位： | 辽宁师范大学化学化工学院 辽宁 大连116029 |
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| 基金项目： | 全国大学生创新创业训练计划(201310165014)、辽宁省高等学校科学研究一般项目(L2014421)资助 |
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| 摘 要： | 在水热条件下,Cu(Ⅱ)-H2biim配合物与Dawson型钨磷酸盐构筑了1个无机-有机杂化化合物Cu(H2biim)2(H2O)]{Cu(H2biim)2}2(P2W18O62)]·11H2O(1)(H2biim=2,2'-联咪唑)。 通过单晶X射线衍射、红外光谱(IR)、X射线粉末衍射(XRD)、元素分析、电化学分析等技术手段对其进行了表征。 结构分析表明,在化合物1分子中,P2W18O62]6-单元作为双齿配体与2个Cu2+离子配位形成双支撑的杂多阴离子{Cu(H2biim)2}2(P2W18O62)]2-,在其外部有1个游离的Cu(H2biim)2(H2O)]2+ 和11个H2O分子。 H2biim分子与杂多阴离子/H2O分子间存在![]() 氢键,通过氢键、静电和π-π堆积作用,进一步构成具有3D结构的晶体材料。 该晶体化合物对H2O2和NaNO2的还原具有良好的电催化作用;同时,作为酸催化剂用于合成环己酮乙二醇缩酮反应,催化活性高,可重复使用。
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| 关 键 词： | 铜配合物 Dawson结构 钨磷酸盐 联咪唑 电催化 酸催化 |
| 收稿时间： | 2014-08-06 |
Synthesis,Crystal Structure and Catalytic Activity of a Dawson-type Tungstophosphate Decorated by Copper Complexes |
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| ZHU Haotian,LI Xiaohui,BAI Jianping,LU Mingda,AN Yue
,YOU Wansheng
.Synthesis,Crystal Structure and Catalytic Activity of a Dawson-type Tungstophosphate Decorated by Copper Complexes[J].Chinese Journal of Applied Chemistry,2015,32(4):433-441. |
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| Authors: | ZHU Haotian LI Xiaohui BAI Jianping LU Mingda AN Yue
YOU Wansheng
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| Institution: | School of Chemistry and Chemical Engineering,Liaoning Normal University,Dalian,Liaoning 116029,China |
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| Abstract: | An inorganic-organic hybrid compound Cu(H2biim)2(H2O)]{Cu(H2biim)2}2(P2W18 O62)]·11H2O(H2biim=2,2'-biimidazole)(1) has been hydrothermally constructed by the reaction of Cu(Ⅱ)-H2biim complexes and Dawson-type tungstophosphate, and characterized by single-crystal X-ray diffraction, infrared spectroscopy(IR), X-ray powder diffraction(XRD), elemental analysis and electrochemical analysis. Structural analysis shows that the polyanion P2W18O62]6-, as a bidentate ligand, coordinates with two Cu2+ ions to form a bi-Cu(Ⅱ)-supporting heteropolyanion {Cu(H2biim)2}2(P2W18O62)]2-, which is surrounded by an isolated Cu(H2biim)2(H2O)]2+ and eleven H2O molecules. The presence of ![]() hydrogen bonds between H2biim molecules and polyoxoanion or water molecules, in company with the synergistic effect of electrostatic interactions and π-π stack, leads to the formation of a crystal material with 3D framework further. Compound 1 displays good electrocatalytic activity toward the reduction of H2O2 and Na2NO2. Meanwhile it is also a good acid-catalyst for the synthesis of cyclohexanone ethylene ketal and can be recycled. |
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| Keywords: | copper complex dawson structure tungstophosphate biimidazole electrocatalytic activity catalytic activity |
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