Self-assembly Chemistry Of Oxadiazole And 4-aminotriazole Bent Organic Ligands With Imidazole And Benzimidazole As Terminal Groups And Metal Ions

Metal-organic frameworks(MOFs)are a class of novel materials that are selfassembled by coordination of metal central ions with organic ligands.In the research of metal organic frameworks,the stability of MOFs has always been a problem for scientists.Based on the study of the stability of MOFs,a series of semi-rigid organic ligands containing oxadiazole and triazoles with pyridyl groups as end groups were reported in the text and their self-assembly chemistry with different metal ions was studied.In this paper,17 metal-organic coordination polymers with novel structures were synthesized by hydrothermal and diffusion method,and their structures and thermal stability were analyzed by infrared spectroscopy,X-ray single crystal diffraction and TGA analysis.Fluorescent properties were characterized.1.Four bent organic ligands containing 1,3,4-oxadiazole which imidazole or benzimidazole as terminal coordination groups were prepared,and the assembly chemistry of these ligands with Cd(?),Ag(?),Co(?),Cu(?)and Cu(?)salts were studied.Eleven novel compounds were synthesized and their thermal stability and fluorescence property were studied according to their structural characteristics.2.A series of semi-rigid organic ligand generated from 4-amino-1,2-triazole with imidazole or benzimidazole as the terminal group were prepared,and were carried out with Ag(?),Cu(?)and Hg(?).Six new coordination compounds were obtained,and their thermal stability and fluorescence properties were studied.