三(4-咪唑-2,6-二氯苯基)甲基自由基(TTM-3Im)的合成及其性质研究  

Tris(4-imidazole-2,6-dichlorophenyl)methyl radical(TTM-3Im):synthesis and properties

作　　者：涂倩 史学亮 赵小莉 杨海波 TU Qian;SHI Xue-liang;ZHAO Xiao-li;YANG Hai-bo(School of Chemistry and Molecular Engineering,East China Normal University,Shanghai 200062,China)

机构地区：[1]华东师范大学化学与分子工程学院,上海200062

出　　处：《分子科学学报》2021年第1期54-62,共9页Journal of Molecular Science

基　　金：上海市扬帆计划资助项目(19YF1412900)。

摘　　要：本文报道了一种新的三苯甲基自由基衍生物,即三(4-咪唑-2,6-二氯苯基)甲基自由基(TTM-3Im)的合成与性质研究.TTM-3Im展示了有趣的发光性能和良好的稳定性.此外,由于TTM-3Im含有3个咪唑基元,因此可以作为配体用于构筑自由基金属有机框架结构(MOFs).基于此,本工作成功地将稳定发光自由基TTM-3Im与CdⅡ配位组装形成金属有机框架TTM-3Im-CdCl_(2)(MOF-1).X射线单晶衍射测试表明MOF-1具有二维有序结构,CdⅡ离子分别与咪唑和Cl离子形成Cd—N和Cd—Cl键,从而交织形成连续的孔状结构.Organic radicals are present in many important chemical and biological processes,and have been increasingly attracting agreat deal of attention and interest due to their unique chemical and physical properties.The unique open-shell structures and redox ability of organic radicals render them as special candidates for application in the field of materials science such as spintronics,magnetic materials,and organic radical battery.Recently,organic radicals have been emerging as unusual luminescent materials and have achieved great success in the application of highly efficient radical-based organic light-emitting diodes(OLEDs).Organic radicals bearing suitable coordination site could also serve as special organic functional ligands,which have been widely employed to constructed radical-metal complexes ranging from one-dimensional coordination chains to two-and three-dimensional metal-radical networks,showing intriguing optical,electrical and magnetic properties.Very recently,some reports have also demonstrated that the coordination of the luminescent radicals with metal ions could affect their emissive properties such as the fluorescence quantum yield and photostability.Therefore,the design and synthesis of novel luminescent radical ligand and luminescent radicalbased coordination complex are of great interest,and their special chemical and photophysical properties are expected.However,the luminescent radical coordination complexes and their properties remains unexplored mainly because of the inherent instability of organic radicals that always challenges the skills of synthetic chemists.In this work,a novel luminescent radical,namely tris(4-imidazole-2,6-dichlorophenyl)methyl(TTM-3 Im)radical,consisting of three imidazole has been successfully designed and synthesized.TTM-3 Im radical has good stability and can be purified by column chromatography,which is fully characterized by means of electrospray ionization mass spectrometry(ESI-MS),electron paramagnetic resonance(EPR)spectroscopy and X-ray crystallographic ana

关 键 词：发光自由基 金属有机框架(MOFs) X射线单晶衍射 电子顺磁共振 

分 类 号：O626[理学—有机化学]