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四咪唑基卟啉构筑的Zn(Ⅱ)配位聚合物的结构和性质研究

Structures and properties of Zn(Ⅱ)-coordination polymers constructed from tetraimidazolyl-based porphyrin

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【作者】 姜维王佳姜宇刘博

【Author】 JIANG Wei;WANG Jia;JIANG Yu;LIU Bo;College of Environmental Science and Engineering, Jilin Normal University;Key Laboratory of Preparation and Application of Environmental Friendly Materials, Ministry of Education,Jilin Normal University;Key Laboratory of Environmental Materials and Pollution Control, the Education Department of Jilin Province,Jilin Normal University;

【机构】 吉林师范大学环境科学与工程学院吉林师范大学环境友好材料制备与应用教育部重点实验室吉林师范大学吉林省高校环境材料与污染控制重点实验室

【摘要】 以5,10,15,20-四(4-(1-咪唑基)苯基)卟啉(H2tipp)为配体,Zn(Ⅱ)为金属中心,通过调控阴离子种类合成了2种卟啉配位聚合物:[Zn3(tipp)(CH3COO)4(H2O)]·0.5DMA (1)和[Zn3(tipp)Cl4(H2O)]·0.5DMA (2).单晶结构分析表明,化合物(1)和(2)结晶于单斜C2/c空间群,每个独立单元中包含0.5个tipp2-配体、1.5个Zn(Ⅱ)离子、1个配位水分子、2个配位阴离子和游离溶剂.两个化合物具有相似的一维链状结构,并通过苯环和吡咯环间的C—H…π相互作用拓展为三维超分子框架.此外,热重曲线表明制备的配位聚合物具有良好的热稳定性.紫外-可见漫反射光谱显示化合物(1)和(2)具有宽泛的可见光吸收范围和良好的光吸收能力.固体光致发光光谱证明化合物(1)和(2)在410 nm波长激发下有明显的发射峰.

【Abstract】 By adjusting anions, two porphyrinic coordination polymers, [Zn3(tipp)(CH3COO)4(H2O)]·0.5 DMA(1) and [Zn3(tipp)Cl4(H2O)]·0.5 DMA(2) were synthesized by utilizing 5,10,15,20-tetrakis(4-(imidazol-1-yl)phenyl)porphyrin(H2tipp) as ligand and Zn(Ⅱ) as metal center.Single-crystal X-ray diffraction analyses reveal that compound(1) and(2) crystallize in monoclinic C2/c space group.Each individual unit contains half tipp2- ligand, one and a half Zn(Ⅱ) ion and two coordinated anions.Both compounds exhibit similar 1 D chain structures, which are further extended to 3 D supramolecular architectures through C—H…π interactions.In addition, thermogravimetric curves demonstrate that compound(1) and(2) have better thermal stability.The UV-vis diffuse reflectance spectra show that compounds(1) and(2) have broad visible light absorption range and excellent light absorption ability.In the end, the solid-state photoluminescence spectra verify compounds(1) and(2) have obvious emission peaks upon excitation at 410 nm.

【关键词】 卟啉配位聚合物咪唑晶体结构
【Key words】 porphyrincoordination polymerimidazolecrystal structure
【基金】 国家自然科学基金项目(21902060);吉林省科学技术发展计划项目(YDZJ202101ZYTS078)
  • 【文献出处】 吉林师范大学学报(自然科学版) ,Journal of Jilin Normal University(Natural Science Edition) , 编辑部邮箱 ,2021年04期
  • 【分类号】O641.4
  • 【下载频次】213
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