Synthesis, Characterization Of Pb(Ⅱ) Coordination Polymers Based On2-amino Terephthalate Ligand

Coordination polymers (CPs) have been a subject of immense current interest inresearch activities in many laboratories due to their diverse properties and highlytunable construction. CPs are potential candidates for investigating numerous usesincluding gas adsorption, molecular sieves, ion exchange, heterogeneous catalysis,host–guest induced separation magnetic materials, luminescence materials and so on.The design possibilities of CPs depends upon the organic connector and thecoordination tendencies of metal ions which gives rise to an innumerable number ofcoordination polymeric structures quite often endowed with novel structural featuresas well as the intriguing nature of molecular connectivities and topologies. A vastmajority of CPs with structural variations are known with both transition metal ionsand carboxylate donor ligands connected to rigid aromatic groups. This thesis selectsthe2-amino terephthalate organic ligand, transition metal ions and ligands containingnitrogen,through solvent synthesis synthesized a series of original have no of newcoordination polymer, These a series of new coordination polymer structurerepresentation include single crystal X-ray diffraction, the element analysis, infraredspectroscopy (IR), thermal properties. At the same time individual coordinationpolymer fluorescence properties were studied. This thesis is divided into fourchapters:The first chapter is introduction, Simple introduction of coordination polymer isintroduced and the research progress of carboxylic acid coordination polymer scaleinhibitors, and elaborated this topic selected topic significance and the researchprogress.In the second chapter, the three new coordination polymers [Pb(NH2-BDC)](1),[Pb(NH2-BDC)(H2O)](2) and [Pb4(NH2-BDC)6(H2O)](3) were synthesis byhydrothermal synthesis method2-amino terephthalate ligand and lead nitrate. Singlecrystal X-ray diffraction analysis results show that the Compound1to3is all3-Dstructure formed from the accumulation. Our study on its fluorescence properties, making it there is a potential value in fluorescent material applications.The third chapter,[Pb(NH2-BDC)(Bpp)](4) which as one new coordinationpolymers, was successfully synthesized by2-amino terephthalate and1,3-di(4-pyridyl)propane (bpp) which is the second auxiliary ligandcontainingnitrogen. The Coordination polymer4, which the bpp as a ligand connectthe chain to chain together, is the2-D layer structIn the four chapter, It can be summarized in the structure and properties ofcoordination polymer. The summarized can become a theoretical reference in morenew MOF coodrination polymer sythesis.