基于吡嗪基吡唑类卟啉构筑的配位聚合物的合成、结构及性质研究

Syntheses,structures and properties of coordination polymers constructed from porphyrin with pyrazinyl pyrazole groups

使用吡嗪基吡唑类卟啉配体与CdCl_(2)·5H_(2)O在溶剂热条件下构筑了两个卟啉基配位聚合物[Cd(TPPP)]·DMF(1)和[Mn(TPPP)]·DMF(2),并通过单晶X射线衍射分析、元素分析和红外光谱表征了其结构组成.单晶结构分析显示:化合物(1)属于三斜P-1空间群,化合物(2)为单斜P 2_(1)/c空间群.化合物(1)和(2)均为一维链状结构,并通过C—H…π分子间作用力连接为三维超分子结构.热重曲线和紫外-可见漫反射光谱显示,化合物(1)和(2)具有良好的稳定性和可见光吸收性能.固体光致发光光谱表明化合物(1)有明显的发射峰,是潜在的发光材料.

Two porphyrinic coordination polymers[Cd(TPPP)]·DMF(1)and[Mn(TPPP)]·DMF(2)were synthesized by pyrazinyl pyrazole-based porphyrin and CdCl_(2)·5H_(2)O under solvothermal conditions,and further characterized by single crystal X-ray diffraction analyses,elemental analyses and infrared spectra.Single crystal structure analyses reveal that compounds(1)and(2)belong to triclinic P-1 space group and monoclinic P 2_(1)/c space group,respectively.Compounds(1)and(2)are 1D chains and further held into 3D supramolecular architectures through C—H…πintermolecular interactions.In addition,thermogravimetric curves and UV-vis diffuse reflectance spectra reveal that compounds(1)and(2)display excellent stabilities and visible-light absorption properties.The solid photoluminescence spectra demonstrate that compound(1)has obvious emission peaks,which may be a potential luminescent material.