高等学校化学学报

高等学校化学学报

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一维链状[Mn(9-AC)2(4,4'-bpy)(H2O)2]n配位聚合物的合成及晶体结构

赵国利1, 吴英1, 叶俊伟2, 叶开其1   

    1. 吉林大学化学学院, 超分子结构与材料国家重点实验室, 长春 130012;
    2. 大连理工大学化工学院, 大连 116012
  • 收稿日期:2007-08-13 修回日期:1900-01-01 出版日期:2008-04-10 发布日期:2008-04-10
  • 通讯作者: 叶开其

Synthesis and Crystal Structure of One-dimensional Chain Coordination Polymer [Mn(9-AC)2(4,4'-bpy)(H2O)2]n

ZHAO Guo-Li1, WU Ying1, YE Jun-Wei2, YE Kai-Qi1*   

    1. State Key laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China;
    2. School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China
  • Received:2007-08-13 Revised:1900-01-01 Online:2008-04-10 Published:2008-04-10
  • Contact: YE Kai-Qi

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摘要：

在水热条件下(120 ℃), 将醋酸锰、4,4'-联吡啶(4,4'-bpy)与9-蒽酸(9-HAC)反应, 得到了配位聚合物[Mn(9-AC)2(4,4'-bpy)(H2O)2]n, 通过元素分析、红外光谱、X射线单晶衍射对其进行了表征, 并用TGA研究了该配位聚合物的热稳定性. 结构解析结果表明, 该晶体属于正交晶系, Fdd2空间群, a=1.66772(12) nm, b=3.36471(16) nm, c=1.1687(4) nm, V=6.558(2) nm3, Z=8, Mr=689.60, Dc=1.397 Mg/m3, R=0.0356, wR2 = 0.0604. 在该配位聚合物中, 中心锰原子采取略微变形的八面体构型, 与两种配体共同构筑了一维直线形链结构, 链与链之间通过氢键相互作用构筑成三维超分子网络.

关键词: 水热合成, 配位聚合物, 晶体结构, 氢键

Abstract: Hydrothermal reactions of Mn(Ⅱ) acetate, 4,4'-bipyridyl(bpy) with anthracene-9-carboxylic acid(9-HAC) resulted in a new coordination polymer [Mn(9-AC)2(4,4'-bpy)(H2O)2]n. The coordination polymer was characterized by ICP, IR, TGA and single-crystal X-ray diffraction analysis(Mo Kα). The crystal crystallizes in an orthorhombic system, space group Fdd2, a=1.66772(12) nm, b=3.36471(16) nm, c=1.1687(4) nm, V =6.558(2) nm3, Z=8, Mr=689.60, Dc=1.397 Mg/m3, R=0.0356, wR2=0.0604. The Mn centers in the frameworks adopt slightly distorted octahedral coordination geometry, and is bridged by 4,4'-bpy ligands to form one-dimensional straight chain structure. The chain packing in the compound gives rise to three-dimensional structure based on weak coordination bond, hydrogen bonding interactions.

Key words: Hydrothermal synthesis, Coordination polymer, Crystal structure, Hydrogen bond

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