物理化学学报 >> 2011, Vol. 27 >> Issue (10): 2269-2274.doi: 10.3866/PKU.WHXB20110908

热力学,动力学和结构化学 上一篇    下一篇

三维配位聚合物[Sr(BDC)(H2O)]的合成、结构与热稳定性

付颖, 李国宝, 廖复辉, 林建华   

  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
  • 收稿日期:2011-05-20 修回日期:2011-06-21 发布日期:2011-09-27
  • 通讯作者: 李国宝, 林建华 E-mail:liguobao@pku.edu.cn; jhlin@pku.edu.cn
  • 基金资助:

    国家重大基础研究计划(973) (2010CB833103)资助项目

Synthesis, Structure and Thermal Property of a 3D Coordination Polymer [Sr(BDC)(H2O)]

FU Ying, LI Guo-Bao, LIAO Fu-Hui, LIN Jian-Hua   

  1. Beijing National Laboratory for Molecular Sciences BNLMS, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
  • Received:2011-05-20 Revised:2011-06-21 Published:2011-09-27
  • Contact: LI Guo-Bao, LIN Jian-Hua E-mail:liguobao@pku.edu.cn; jhlin@pku.edu.cn
  • Supported by:

    The project was supported by the National Key Basic Research Program of China (973) (2010CB833103).

摘要: 利用溶剂热法在硝酸锶、1,4-对苯二甲酸(BDC)、N,N'-二甲基甲酰胺(DMF)和水体系中合成了一种新的配位聚合物[Sr(BDC)(H2O)] (1), 并通过单晶X射线衍射、变温粉末X射线衍射、元素分析、红外光谱和热重-质谱联用对其进行了表征. 该化合物属正交晶系的Pbca 空间群, 晶胞参数为a=1.1854(2) nm, b=0.7122(1) nm,c=2.0031(4) nm. 该化合物具有三维网络结构, 由共面的SrO8四方反棱柱组成的zigzag 链通过1,4-对苯二甲酸配体连接而成. 热重-质谱联用和变温粉末X射线衍射分析表明它的骨架具有较高的热稳定性.

关键词: 1,4-对苯二甲酸, 锶, 溶剂热合成, 结构, 热稳定性

Abstract: The solvothermal reactions of Sr(NO3)2 with 1,4-benzenedicarboxylic acid (BDC) in a mixture of H2O/N,N'-dimethylformamide (DMF) resulted in a novel coordination polymer, [Sr(BDC) (H2O)] (1), which was characterized by single crystal and variable temperature powder X-ray diffraction (VTPXRD), elemental analysis, infra-red (IR) spectroscopy, and thermogravimetric-mass spectrometric (TG-MS) analysis. Compound 1 crystallizes in the orthorhombic space group Pbca with a=1.1854(2) nm, b=0.7122 (1) nm, and c=2.0031(4) nm. It is a three-dimensional (3D) framework consisting of zigzag chains that are formed by face-shared SrO8 square antiprisms and bridging BDC ligands. TG-MS and VTPXRD studies revealed that the framework of compound 1 exhibited a high thermal stability.

Key words: 1,4-Benzenedicarboxylic acid, Strontium, Solvothermal synthesis, Structure, Thermal property

MSC2000: 

  • O641