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首页> 外文期刊>Journal of Solid State Chemistry >Synthesis, structures and properties of three lead coordination polymers based on ethylenediaminetetraacetate ligand
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Synthesis, structures and properties of three lead coordination polymers based on ethylenediaminetetraacetate ligand

机译：基于乙二胺四乙酸配体的三种铅配位聚合物的合成，结构和性质

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摘要

Three Pb(II)-edta complexes, Pb-3(edta)(H2O)Cl-2](n)center dot(H2O)(3n) (1), [Pb-5(edta)(2)(H2O)(2)X-2](n center dot)(H2O)(2n) (X = Cl (2), Br (3)) (H(4)edta = ethylenediaminetetraacetic acid) have been synthesized by the reaction of PbX2 and H(4)edta under hydrothermal conditions, and were characterized by elemental analysis, thermal analysis, luminescence, powder X-ray diffraction and single-crystal X-ray diffraction. The results of X-ray crystallographic analysis reveal that these complexes are the first bilayer two-dimensional (2D) Pb-edta coordination polymers with 1D channels. The bilayers of complexes 1, 2 and 3 are linked by [Pb2Cl4], [PbCl2] and [PbBr2] clusters with carboxylate groups respectively. They are 3D supramolecular structures which are resulted from different halogenide anions. The emission spectra of 1-3 are dominated by intense and broad emission bands which are resulted from the [PbX2] clusters. Optical absorption spectra indicate that theses complexes have wide optical band-gaps and can be probably used as wide optical band-gap semiconductor materials.
机译：三种Pb（ii）-edta络合物，Pb-3（EDTA）（H 2 O）Cl-2]（n）中心点（H 2 O）（3N）（1），[Pb-5（EDTA）（2）（H2O） （2）X-2]（N中心点）（H2O）（2N）（X = Cl（2），Br（3））（H（4）EDTA =乙二胺四乙酸）已通过PBX2的反应合成，和H（4）在水热条件下EDTA，其特征在于元素分析，热分析，发光，粉末X射线衍射和单晶X射线衍射。 X射线晶体分析的结果表明，这些配合物是具有1D通道的第一双层二维（2D）PB-EDTA配位聚合物。复合物1,2和3的双层分别与羧酸盐基团的[Pb2Cl4]，[PbCl2]和[PBBR2]簇连接。它们是3D超分子结构，由不同的卤化物阴离子引起。 1-3的发射光谱由强烈的宽和宽发射带构成，该强度和宽的发射带由[PBX2]簇产生。光学吸收光谱表明，这些复合物具有宽的光带间隙，并且可以用作宽光带间隙半导体材料。

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  • 来源
    《Journal of Solid State Chemistry》 |2019年第2019期|共8页
  • 作者

    Liu Dong-Sheng; Qiu Zhi-Jun; Fu Xiao; Liu Yi-Zhuo; Ding Pan; Zhu Yun-Xia; Sui Yan;

  • 作者单位

    Jinggangshan Univ Inst Appl Chem Sch Chem &

    Chem Engn Key Lab Coordinat Chem Jiangxi Prov Jian 343009 Jiangxi Peoples R China;

    Jinggangshan Univ Inst Appl Chem Sch Chem &

    Chem Engn Key Lab Coordinat Chem Jiangxi Prov Jian 343009 Jiangxi Peoples R China;

    Jinggangshan Univ Inst Appl Chem Sch Chem &

    Chem Engn Key Lab Coordinat Chem Jiangxi Prov Jian 343009 Jiangxi Peoples R China;

    Jinggangshan Univ Inst Appl Chem Sch Chem &

    Chem Engn Key Lab Coordinat Chem Jiangxi Prov Jian 343009 Jiangxi Peoples R China;

    Jinggangshan Univ Inst Appl Chem Sch Chem &

    Chem Engn Key Lab Coordinat Chem Jiangxi Prov Jian 343009 Jiangxi Peoples R China;

    Jinggangshan Univ Inst Appl Chem Sch Chem &

    Chem Engn Key Lab Coordinat Chem Jiangxi Prov Jian 343009 Jiangxi Peoples R China;

    Jinggangshan Univ Inst Appl Chem Sch Chem &

    Chem Engn Key Lab Coordinat Chem Jiangxi Prov Jian 343009 Jiangxi Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 物理化学（理论化学）、化学物理学;
  • 关键词

    Lead coordination polymer/crystal structure; Fluorescence and optical absorption properties;

    机译：铅配位聚合物/晶体结构;荧光和光学吸收性能;

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