| 新型一维链状配位聚合物新型一维链状配位聚合物{[Cu2(dhbd)(bipy)2]•10H2O}n的研究 |
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| 引用本文： | 李东升,王尧宇,刘萍,栾新军,周彩华,史启祯.新型一维链状配位聚合物新型一维链状配位聚合物{[Cu2(dhbd)(bipy)2]•10H2O}n的研究[J].化学学报,2005,63(17):1633-1637. |
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| 作者姓名： | 李东升 王尧宇 刘萍 栾新军 周彩华 史启祯 |
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| 作者单位： | (西北大学化学系 陕西省物理无机化学重点实验室 西安 710069);(延安大学化学化工学院 功能材料研究所 陕西省化学反应工程重点实验室 延安 716000) |
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| 摘 要： | 采用水热法合成了标题配位聚合物{Cu2(dhbd)(bipy)2]?10H2O}n (H4dhbd＝2,3-二羟基丁二酸, bipy＝2,2'-联吡啶), 通过元素分析、红外光谱、热分析、X射线单晶衍射等技术对其进行了表征．配合物属单斜晶系, 空间群C2/c, a＝2.1965(4) nm, b＝1.0671(2) nm, c＝1.3662(3) nm, β＝93.50(3)°, Z＝4, R＝0.0388．晶体的基本构建基元包含10个结晶H2O分子和由两个Cu(II)原子、一个采用双二齿螯合配位的2,3-二羟基丁二酸根、两个2,2'-联吡啶形成具有C2旋转轴的U形双核单元, 相邻的两个方向相反的U形双核单元通过双羧基O桥联形成沿c轴延伸的一维链; 链间籍C—H…O和O—H…O氢键扩展为三维结构．配合物中呈现了一种2,3-二羟基丁二酸与过渡金属配位的新方式．
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| 关 键 词： | 2 3-二羟基丁二酸铜(II) 配位聚合物 配位方式 水热合成 晶体结构 |
| 收稿时间： | 2005-1-27 |
| 修稿时间： | 2005-7-20 |
Study on a Novel 1D Polymeric Complex {[Cu2(dhbd)(bipy)2]•10H2O}n |
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| Institution: | ( Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Department of Chemistry, Northwest University, Xi'an 710069)( Institute of Functional Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, Department of Chemistry and Chemical Engineering, Yanan University, Yan'an 716000) |
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| Abstract: | The title complex {Cu2(dhbd)(bipy)2]?10H2O}n (H4dhbd＝2,3-dihydroxybutanedioate tetraanion, bipy＝2,2′-bipyridine) has been hydrothermally synthesized and characterized by means of elemental analysis, IR, TG-DSC and single crystal X-ray diffraction. The results show that the complex is monoclinic, with space group C2/c, a＝2.1965(4) nm, b＝1.0671(2) nm, c＝1.3662(3) nm, β＝93.50(3)°, Z＝4 and R＝0.0388. The crystal structure of complex consists of a U-shaped binuclear unit with C2 axis and ten water molecules, in which the U-shaped unit is made of two Cu(II) nuclei with one tetraanionic dhbd adopting bis didentate coordination mode and two 2,2'-bipy ligands, moreover, two coordination carboxy O atoms of dhbd group bridge the two neighboring reversed U-shaped frame to form a 1-D polymeric chain along the crystallographic axis c．These coordination polymer chains are further organized by two different intermolecular hydrogen bonds (C—H…O and O—H…O) to afford a 3D supramolecular structure. This binding mode of dhbd group was not observed so far． |
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| Keywords: | copper(II) dihydroxybutanedioate polymeric complex coordination mode hydrothermal synthesis crystal structure |
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