人工晶体学报2025，Vol.54Issue(4)：693-699,7.DOI:10.16553/j.cnki.issn1000-985x.2024.0244
基于混合配体的两个同构配合物的晶体结构和磁性研究
Crystal Structure and Magnetism of Two Isomorphic Complexes Based on Mixed Ligands
摘要
Abstract
3,6-di(2-pyridyl)-1,2,4,5-tetrazine(DPTZ)and 4,4'-oxybisbenzoic acid(H2OBA)were used as mixed ligands to react with Co(Ⅱ)ions and Cd(Ⅱ)ions under solvothermal conditions,resulting in the formation of the complexes[Co(OBA)(DPTZ)]·(DMF)0.5(1)and[Cd(OBA)(DPTZ)]·(DMF)1.5(2).The structural characterization and analysis of the complexes were conducted through single-crystal X-ray diffraction,powder X-ray diffraction,elemental analysis,and thermogravimetric analysis.Crystallographic data reveals that complexes 1 and 2 are isostructural,belonging to the monoclinic system with the space group of P21/c with each asymmetric unit consisting of one metal ion(Co/Cd),one 3,6-di(2-pyridyl)-1,2,4,5-tetrazine ligand and one 4,4'-oxybisbenzoic acid ligand.The central metal ion(Co/Cd)has a distorted octahedral configuration,and two adjacent metal ions(Co/Cd)are connected by carboxylic acid ligands,forming a dinuclear pinwheel secondary structural unit.The dinuclear pinwheel secondary structural units are connected by OBA and DPTZ ligands,resulting in an infinitely extended 2D wave-like layer.The existence of the V-shaped ligand OBA as a flexible component within the structure gives rise to both left-handed and right-handed helical chains and helical channels.Furthermore,the magnetic measurement result shows that intramolecular antiferromagnetic interaction is observed in complex 1.关键词
Co(Ⅱ)配合物/Cd(Ⅱ)配合物/混合配体/溶剂热法/晶体结构/磁性/螺旋链Key words
Co(Ⅱ)complex/Cd(Ⅱ)complex/mixed ligand/solvothermal/crystal structure/magnetism/helical chain分类
化学引用本文复制引用
李佳,冯婧,苗萌..基于混合配体的两个同构配合物的晶体结构和磁性研究[J].人工晶体学报,2025,54(4):693-699,7.基金项目
上海健康医学院师资人才百人库产学研践习项目(A3-0200-24-311007) （A3-0200-24-311007）
