高等学校化学学报

高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (3): 532.

• 研究论文 • 上一篇    下一篇

两个三维柱层式Ce混合羧酸多孔金属-有机骨架配合物的合成、结构与磁性

朱文华1,2,王哲明1,高松1   

  1. 1. 北京分子科学国家实验室, 稀土材料化学与应用国家重点实验室, 北京大学化学与分子工程学院, 北京 100871;
    2. 湖北大学化学化工学院, 武汉 430062
  • 收稿日期:2010-10-14 修回日期:2010-12-08 出版日期:2011-03-10 发布日期:2011-02-23
  • 通讯作者: 王哲明 E-mail:zmw@pku.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 20871007, 20821091)资助.

Synthesis, Structures and Magnetism of Two New 3D Pillared-layer Cerium Mixed Carboxylate Porous Metal-organic Frameworks

ZHU Wen-Hua1,2, WANG Zhe-Ming1*, GAO Song1   

  1. 1. Beijing National Laboratory for Molecular Sciences, State Key Lab of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;
    2. College of Chemisty and Chemical Engineering, Hubei University, Wuhan 430062, China
  • Received:2010-10-14 Revised:2010-12-08 Online:2011-03-10 Published:2011-02-23
  • Contact: WANG Zhe-Ming E-mail:zmw@pku.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20871007, 20821091)资助.

PDF (PC)

被引次数

7

摘要： 采用水热法合成了两个新的混合羧酸铈多孔金属-有机骨架配合物[Ce2(fum)3 (H2O)4?(bdc)?(H2O)2]n（1）和[Ce2(suc)2(ox)(H2O)4?(H2O)4]n（2），利用元素分析、红外光谱、热重分析和单晶X射线衍射对其组成和结构进行了表征，并通过磁性测量研究了其磁学性能. 单晶X射线衍射结果表明，配合物1和2均为三维柱层式多孔金属-有机骨架结构. 配合物1由Ce离子和富马酸（fumarate, fum）形成层，层与层之间再通过富马酸作为柱状配体支撑形成三维结构，并在层间的两个方向上形成相互交错的通道，未配位的中性对苯二甲酸分子（p-benzenedicarboxylate, bdc）和晶格水分子填充于孔道中. 与配合物1类似，配合物2由Ce离子和丁二酸（succinate, suc）形成层，层间通过草酸（oxalate, ox）作为柱状配体支撑形成三维结构，在层间的三个方向上具有相互交错的通道，晶格水分子填充于孔道中.

Abstract: Two new cerium mixed carboxylate porous metal-organic frameworks, [Ce2(fum)3(H2O)4?(bdc)?(H2O)2]n (1) and [Ce2(suc)2(ox)(H2O)4?(H2O)4]n (2) were synthe- sized by hydrothermal method with two kinds of carboxylic acid, respectively. They were characterized by elemental analysis, IR, TGA-DTA and single-crystal X-ray diffraction. Single-crystal X-ray diffraction indicates that complexes 1 and 2 are both 3D porous metal-organic frameworks with pillared layers. Complex 1 possesses a 3D framework structure consisting of Ce-fumarate layers pillared by fumarate ligands with intersected channels in two directions between the layers occupied by uncoordinated neutral p-benzenedicarboxylic acid and lattice water molecules. Similar to complex 1, complex 2 is a 3D structure with Ce-succinate layers pillared by oxalate ligands, which shows intersected channels in three directions between the layers filled with lattice water molecules.

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