高等学校化学学报

高等学校化学学报

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二维配位聚合物[Cu(ox)(4,4'-bpy)]n的水热合成与结构表征

任红1, 徐家宁2, 于连香2, 叶俊伟3, 毕明辉1, 张萍2, 宋天佑1   

    1. 吉林大学无机合成与制备化学国家重点实验室,
    2. 化学学院,
    3. 超分子化学与材料教育部重点实验室, 长春 130012
  • 收稿日期:2006-10-28 修回日期:1900-01-01 出版日期:2007-06-10 发布日期:2007-06-10
  • 通讯作者: 张萍

Hydrothermal Synthesis and Structure Characterization of a 2D Coordination Polymer [Cu(ox)(4,4'-bpy)]n

REN Hong1, XU Jia-Ning2, YU Lian-Xiang2, YE Jun-Wei3, BI Ming-Hui1, ZHANG Ping2*, SONG Tian-You1*   

    1. Key Laboratory of Inorganic Synthesis and Preparative Chemistry,
    2. College of Chemistry,
    3. Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun 130012, China
  • Received:2006-10-28 Revised:1900-01-01 Online:2007-06-10 Published:2007-06-10
  • Contact: ZHANG Ping

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摘要： 采用水热方法合成出一种新型配位聚合物[Cu(ox)(4,4'-bpy)]n(ox=草酸根离子, 4,4'-bpy=4,4'-联吡啶), 并通过X射线单晶结构分析、元素分析以及红外光谱测定对该化合物进行了表征. 结果表明, 标题化合物属于单斜晶系, Cm空间群, 晶胞参数a=1.1921(7) nm, b=1.153(7) nm, c=0.5155(4) nm, β=113.38(3)°, V=0.6291(7) nm3, Z=2. 该化合物是一个由{Cu(ox)}n链通过桥联配体4,4'-bpy垂直相连并具有矩形格子结构的二维层状配位聚合物, 层与层之间交错排列, 通过C4,4'-bpy—H…Oox层间氢键作用, 进一步扩展成三维超分子网络结构.

关键词: 水热合成, Cu(Ⅱ)配位聚合物, 混合配体, 层状结构, 超分子网络

Abstract: A new polymer [Cu(ox)(4,4'-bpy)]n(1)(ox=C2O42-, 4,4'-bpy=4,4'-bipyridine) was hydrothermally synthesized and characterized via elemental analyses, IR spectrum and single crystal X-ray diffraction. The polymer crystallizes in a monoclinic system, space group Cm, a=1.1921(7) nm, b=1.153(7) nm, c=0.5155(4) nm, β=113.38(3)°, V=0.6291(7) nm3, Z=2. Cu atom in the title compound is in an octahedral geometry with four O atoms from two bis-chelating oxalate ligands in equatorial plane and two N atoms from the 4,4'-bpy ligands in the axial position. The crystal structure possesses infinite {Cu(ox)}n chains connected with each other by the bridging 4,4'-bpy ligands in a perpendicular manner, leading to a 2D layered network with rectangular grids. The layers stacking in a staggered fashion are further assembled by C4,4'-bpy—H…Oox hydrogen bonds and lead to a 3D supramolecular architecture.

Key words: Hydrothermal synthesis, Copper(Ⅱ) coordination polymer, Mixed-ligand, Layered structure, Supramolecular architecture

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