Cobalt(Ⅱ) and Cadimium(Ⅱ) Metal-organic Frameworks Supported by a Multicarboxylate Ligand

Cobalt(Ⅱ) and Cadimium(Ⅱ) Metal-organic Frameworks Supported by a Multicarboxylate Ligand

论文摘要

Two metal-organic frameworks(MOFs) of formulae [Co7(L)3(4,4?-BPy)2(OH)2(H2O)6]·-4 H2O(1) and [Cd2(L)(2,2?-BPy)2]n(2, H4L = 5-(3,5-dicarboxybenzyloxy)-isophthalic acid,2,2?-BPy = 2,2?-bipyridine, 4,4?-BPy = 4,4?-bipyridine) were synthesized under solvothermal conditions. The structures of 1 and 2 were characterized by X-ray single-crystal diffraction analysis.In complex 1, six cobalt atoms were connected by oxygen atoms to form a defect dicubane structure. The defect dicubane structures were further linked by Co(4,4?-BPy) units to generate a3-D network structure. Compound 2 displays a 2-D chain structure. The photoluminescent property of complex 2 is investigated. The results show the exclusive luminescence emission bands being originated from intraligand π-π* transitions.

论文目录

  • 1 INTRODUCTION
  • 2 EXPERIMENTAL
  •   2.1 Materials and physical measurements
  •   2.2 Syntheses of complexes 1 and 2
  •     2.2.1 Synthesis of[Co7 (L) 3 (4, 4?-BPy) 2 (OH) 2 (H2O) 6]·4H2O (1)
  •     2.2.2 Synthesis of[Cd2 (L) (2, 2?-BPy) 2]n (2)
  •   2.3 Structure determination
  • 3 RESULTS AND DISCUSSION
  •   3.1 Structural description
  •     3.1.1 Structure of 1
  •     3.1.2 Structure of 2
  •   3.2 IR spectra and thermal stability studies of 1 and 2
  •   3.3 Luminescent properties of the ligand and complex 2
  • 4 CONCLUSION
  • 文章来源

    类型: 期刊论文

    作者: 杨华,崔华莉,王记江,陈小莉

    来源: Chinese Journal of Structural Chemistry 2019年07期

    年度: 2019

    分类: 工程科技Ⅰ辑

    专业: 化学

    单位: Laboratory of New Energy & New Function Materials of, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan?an University

    基金: Supported by the National Natural Science Foundation of China(21763028),the Natural Science Foundation of Shaanxi Province(2018JM2055)

    分类号: O641.4

    DOI: 10.14102/j.cnki.0254-5861.2011-2198

    页码: 1164-1172

    总页数: 9

    文件大小: 642K

    下载量: 21

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