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Synthesis, Structure And Characterization Of The Coordination Polymers Based On Naphthalene Disulfonic Acid Ligands

Posted on:2014-04-23Degree:MasterType:Thesis
Country:ChinaCandidate:X T HouFull Text:PDF
GTID:2251330401461438Subject:Inorganic Chemistry
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Recently, many transition metal ions and organic ligands synthesis of overseasout of coordination polymer caused wide attention and research chemist. due to thediversity of its structure and function of many potential. for example, gasabsorption,catalysisaction,electricalconductivity,non-linearoptics,photoluminescenceand so on. they have potential application value.The structure and properties ofcoordination polymer,and metal ion, organic ligands, solvent, the influence ofreaction condition.Many functional groups, such as phosphate, carboxylic acid salt,pyridine or a mixture of two or more of them.they Can form a mass of framestructure.This thesis selects the naphthalene sulfonic acid organic ligand, transitionmetal ions and ligands containing nitrogen,through solvent (hot) synthesissynthesized a series of original have no of new coordination polymer, And throughthe element analysis, single crystal X-ray diffraction, infrared spectroscopy (IR), Thestructure of the synthesis of coordination polymers have been characterized. At thesame time also studied the individual coordination polymer fluorescence and thermalproperties. This thesis is divided into five chapters:The first chapter is introduction, Simply introduces the development history ofcoordination chemistry, Introduction of coordination polymer, The development ofcoordination polymer, Sulfonic acid of coordination polymers is reviewed, Andelaborated this topic in the selected topic significance and the research progress.The second chapter,2,7-nds,2,6-nds,1,5-nds and the second auxiliary ligandcontainingnitrogen,1,3-di(4-pyridyl)propane(bpp),4,4’-bipy,successfullysynthesized three new coordinationpolymers.[(2,7-NDS).Cd.(bpp)2].2DMA(1),[Mn(bpp)2(2,6-nds)2(H2O)2](2),[(DMF)3Mn(1,5-NDS)(4,4’-bipy)1/2](3).Coordinationpolymer1through bpp is a ligand connect the chain to chain together to form theholes in the2-D layer structure; Compound2is a one-dimensional chain structure,;Compound3is a through the1,5-naphthalene disulfonic acid ligand together is the2-D layer structure. In the third chapter,2,7-naphthalene disulfonic acid and zinc nitrate ligandsynthesis by hydrothermal synthesis method has developed a new coordinationpolymer [Zn(2,7-nds)(bpp)(H2O)4](4),Single crystal X-ray diffraction analysisresults show that the Compound4is a by the unlimited extension of spiral chainthrough hydrogen bonding interaction,3-D supramolecular structure formed fromthe accumulation,It belongs to monoclinic system, and Compound4showsfluorescence properties at room temperature, We research on its fluorescenceproperties, Make it applied in fluorescent material has potential value.In the fourth chapter, Hydrothermal synthesis method the synthesis of2d layerstructure of two kinds of new coordination polymer [Co(bpp)2(H2O)4].(2,,7-nds)(5)å'Œ[Co(bpp)4(H2O)2].(2,7-nds)(6), Polymer5single crystal X-ray diffractionanalysis results show that, Spatial point group is P2(1)/n, it is monoclinicsystems,Through hydrogen bond effect between chain and chain to form a2-D layerstructure, The coordination polymer6is monoclinic systems, Spatial point groupisP121/n1,Compound6is a by the unlimited extension of one dimensional chain.In the fifth chapter, Six coordination polymer structure and performance aresummarized,After the research for more new metal-organic coordination polymersynthesis provides a theoretical reference.
Keywords/Search Tags:Coordination polymer, Naphthalene disulfonic acid ligands, hydrothermal synthesis, crystal structure
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