基于半刚性咪唑羧酸配体构筑的Cu(I)有机骨架材料:合成、晶体结构和性质

摘要/Abstract

摘要： 在溶剂热条件下,利用半刚性咪唑羧酸配体4-(2-甲基咪唑)苯甲酸和金属铜合成了一种新的Cu(I)配位聚合物[Cu(H₂O)(MIBA)]_n,其中HMIBA代表有机化合物4-(2-甲基咪唑)苯甲酸。在室温条件下,研究了基于半刚性咪唑羧酸配体构筑的Cu(I)有机骨架配位聚合物的固体荧光性能,其中配体HMIBA的最大发射峰为433 nm,配位聚合物[Cu(H₂O)(MIBA)]_n的最大发射峰为412 nm,均显示出荧光性能。此外,通过X射线单晶衍射仪、红外光谱、热重分析和元素分析对其晶体结构进行了表征。X射线单晶衍射表明,该聚合物呈3D→3D双重互穿网络,具有(6⁴·8²)的四连通单节点拓扑结构。

关键词: Cu(I)配位聚合物, 半刚性咪唑羧酸配体, 溶剂热法, 拓扑结构, X射线衍射, 荧光性能

Abstract: Under solvothermal conditions, a new Cu(I) coordination polymer [Cu(H₂O)(MIBA)]_n was synthesized by using semi-rigid imidazole carboxylic acid ligand 4-(2-methylimidazole) benzoic acid and copper, in which MIBA is the negative monovalent anionic coordination polymer of 4-(2-methylimidazole) benzoic acid. The solid-state fluorescence properties of Cu(I) organic skeleton coordination polymer based on semi-rigid imidazole carboxylic acid ligands were studied at room temperature. The maximum emission peak of MIBA ligand is 433 nm, and the maximum emission peak of coordination polymer [Cu(H₂O)(MIBA)]_n is 412 nm, all of which show fluorescence properties. In addition, its crystal structure was characterized by X-ray single crystal diffractometer, infrared spectrum, thermogravimetric analysis and elemental analysis. X-ray single crystal diffraction shows that the polymer is a 3D→3D double interpenetrating network with a (6⁴·8²) four-connected single-node topology.

Key words: Cu(I) coordination polymer, semi-rigid imidazole carboxylic acid ligand, solvothermal method, topological structure, X-ray diffraction, fluorescence performance

中图分类号:

O641.4

潘会宾, 吴婷婷, 高霞, 卢久富. 基于半刚性咪唑羧酸配体构筑的Cu(I)有机骨架材料:合成、晶体结构和性质[J]. 人工晶体学报, 2023, 52(10): 1836-1841.

PAN Huibin, WU Tingting, GAO Xia, LU Jiufu. Cu(I) Organic Framework Based on Semi-Rigid Imidazolium Carboxylate Ligand: Synthesis, Crystal Structure and Property[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2023, 52(10): 1836-1841.

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