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人工晶体学报 ›› 2025, Vol. 54 ›› Issue (1): 115-120.DOI: 10.16553/j.cnki.issn1000-985x.2024.0246

• 研究论文 • 上一篇    下一篇

基于胡椒酸/4,4′-联吡啶的Zn配位聚合物的合成、结构及Hirshfeld分析

徐娅蓉1, 赵九州1, 赵成兄1, 梁毅农1, 孙赞1,2   

  1. 1.青海民族大学化学与材料科学学院,西宁 810007;
    2.青藏高原资源化学与生态环境保护国家民委重点实验室,西宁 810007
  • 收稿日期:2024-10-14 出版日期:2025-01-15 发布日期:2025-01-22
  • 通信作者: 孙 赞,博士,副教授。E-mail:sunzan_2006@126.com
  • 作者简介:徐娅蓉(1998—),女,甘肃省人,硕士研究生。E-mail:2723687124@qq.com
  • 基金资助:
    青海省自然科学基金(2020-ZJ-964Q)

Synthesis, Structure and Hirshfeld Analysis of Zn Coordination Polymer Based on 1,3-Benzodioxole-5-Carboxylic Acid and 4,4′-Bipyridine

XU Yarong1, ZHAO Jiuzhou1, ZHAO Chengxiong1, LIANG Yinong1, SUN Zan1,2   

  1. 1. School of Chemistry and Materials Science, Qinghai Minzu University, Xining 810007, China;
    2. Key Laboratory of Resource Chemistry and Eco-environmental Protection in Tibetan Plateau, State Ethnic Affairs Commission, Xining 810007, China
  • Received:2024-10-14 Online:2025-01-15 Published:2025-01-22

摘要: 利用胡椒酸(HBDCA)和4,4′-联吡啶(4,4′-bpy)与Zn(NO3)2通过溶剂热反应,成功合成了一例锌配位聚合物[Zn(BDCA)(4,4′-bpy)0.5]n(I),并通过X射线单晶衍射(SXRD)、元素分析(EA)、红外光谱(IR)、热重分析(TGA)、X射线粉末衍射(XRD)等手段对其结构进行表征。配合物I属于单斜晶系,I2/a空间群,晶胞参数为a=1.321 96(11) nm,b=1.019 64(9) nm,c=1.672 83(14) nm和β=100.771(6)°,分子式为C26H18N2O8Zn。在配合物I中,中心Zn原子位于扭曲的四面体几何构型中,配体连接金属形成1D链结构。Hirshfeld分析表明,链与链之间可通过π…π堆积和C—H…O相互作用形成3D超分子结构。此外,还研究了配合物I的紫外-可见漫反射光谱及固态荧光性能。

关键词: 锌配位聚合物, 溶剂热合成, 晶体结构, Hirshfeld分析, 紫外-可见漫反射光谱, 固态荧光

Abstract: A Zn coordination polymer [Zn(BDCA)(4,4′-bpy)0.5]n (I) was successfully synthesized by solvent thermal synthesis based on 1,3-benzodioxole-5-carboxylic acid (HBDCA), 4,4′-bipyridine (4,4′-bpy) and Zn(NO3)2. The structure was characterized by X-ray single crystal diffraction (SXRD), elemental analysis (EA), infrared spectroscopy (IR), thermogravimetric analysis (TGA) and X-ray powder diffraction (XRD). The results indicate that complex I belongs to the monoclinic crystal system, I2/a space group, with lattice parameters of a=1.321 96 (11) nm, b=1.019 64 (9) nm, c=1.672 83 (14) nm and β=100.771 (6)°. The molecular formula is C26H18N2O8Zn. In complex I, the central Zn atom is located in a distorted tetrahedral geometry, and the ligand connects the metal to form a 1D chain structure. Hirshfeld analysis show that the chains can interact with each other through π…π stacking and C—H…O interactions to form a 3D supramolecular structure. In addition, the UV-vis diffuse reflectance spectra and solid-state fluorescence properties of complex I were also studied.

Key words: Zn coordination polymer, solvent thermal synthesis, crystal structure, Hirshfeld analysis, UV-vis diffuse reflectance spectrum, solid-state fluorescence

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