Synthesis,Structures And Properties Research Of Sulfonate-based Mental Coordination Polymers

In recent decades,the design and construction of novel metal coordination polymers?MCPs?have currently attracted great attention from chemists and material scientists due to its diverse structures,attractive topological structures,and wide potential applications.Through the development of scientific research,a large number of metal coordination polymers with different structures and properties were synthesized and reported.Sulfonic-based metal coordination polymers prepared by the reaction of sulfonic ligands and transition metals with nitrogen-containing heterocyclic auxiliary ligands occupy a certain position in the number of papers.In this paper,seven silver sulfonate metal coordination polymers based on sulfonic acid ligands and nitrogen heterocyclic auxiliary ligands were synthesized under room temperatue conditions.The metal coordination polymers were characterized by EA,XRD,IR and TGA.The FL properties of metal coordination polymers were also discussed.The main research contents of this thesis are as follows:Firstly,based on organic ligands benzenesulfonic acid?BS?,p-aminobenzene sulfonic acid?ABS?and transition mental Ag?I?ion coordinated with nitrogen-containing heterocyclic auxiliary ligand 4,4'-bipyridine?BPY?,we design and synthesized two metal coordination polymers under hydrothermal or solvothermal conditions,namely:[Ag₂?BPY?₂?BS??NO₃??H₂O?₂]·H₂O?1?,[Ag₂?BPY?₂?ABS??NO₃?]·H₂O?2?.Metal coordination polymers 1-2 exhibits a one-dimensional?1D?chainstructurethrough cental Ag?I?ionbridged nitrogen-containing heterocyclic auxiliary ligand BPY,and a three-dimensional?3D?framework structure formed by hydrogen bonding interactions X-H···O?X=N,O,C?,?···?packing interactions and C-H···?interactions.At the same time,the fluorescence properties of metal coordination polymers 1-2 are further studied.Secondly,based on organic ligands benzenesulfonic acid?BS?and transition mental Ag?I?ion coordination with nitrogen-containing heterocyclic auxiliary ligand1,2-bi?4-pyridyl?ethane?BPYE?,we design and synthesized one new metal coordination polymer under hydrothermal or solvothermal conditions,namely:[Ag?BPYE??BS?]?1?.Metal coordination polymers 1 exhibits one-dimensional?1D?chain structure through cental Ag?I?ion connected nitrogen atoms from nitrogen-containing heterocyclic auxiliary ligands BPYE,and a 3D framework structure formed by hydrogen bonding interactions X-H···O?X=C?,?···?packing interactions and C-H···?interactions.At the same time,we also studied the fluorescence properties of metal coordination polymer 1.Thirdly,we synthesized four novel metal coordination polymers based on organicligandsbenzenesulfonicacid?BS?,p-toluenesulfonate?MBS?,p-aminobenzene sulfonic acid?ABS?,carbazochrome sodium sulfonate?KL?and transition mental Ag?I?ion with nitrogen-containing heterocyclic auxiliary ligand1,3-di?pyridine-4-yl?propane?DPP?,which have been obtained under hydrothermal or solvothermal conditions,namely:[Ag?BS??DPP?₂]?1?,[Ag?MBS??DPP?₂]?2?,[Ag?ABS??DPP?₂]·H₂O?3?and[Ag?KL??DPP?₂]·2H₂O?4?.Metal coordination polymers 1,2 and 4 exhibits one-dimensional?1D?chain structure,which cental Ag ion link with nitrogen-containing heterocyclic ligand 1,3-di?pyridine-4-yl?propane,and metal coordination polymer 3 exhibits one-dimensional?1D?chain structure?Ag1-Ag4?and two-dimensional?2D?network structure?Ag5-Ag8?.Metal coordination polymers 1-4 forms a three-dimensional?3D?supramolecular framework through X-H···O?X=N,O,C?and?···?interactions.At the same time,metal coordination polymer 4 also has C-H···?interactions,and the fluorescence properties of metal coordination polymers 1-4 have been further studied.These results indicate that the coordination modes of metal ions and organic ligands have a great influence on the structure and properties of the final metal coordination polymers.