Synthesis, Structures And Properties Of The Coordination Polymers Based On Tripodal Carboxylate Ligands

In recent years, the design and construction of metal-organic coordinationpolymers with novel topologies or intriguing architectures have attracted greatattention not only because of their intrinsic aesthetic appeal but also because of theirpotential applications as functional materials. In order to create functional materialsuseful for applications in various areas （such as storage, separation, catalysis, sensors,fluorescent probe and so on）, rational design of structures with control of networktopology is very important. The highly symmetrical tripodal carboxylate ligandsparticularly attract more attention because of the fact that in their self-assemblyprocess various coordination modes can be adjusted to generate interesting structuralmotifs. This paper is mainly about the structures and properties of a series of novelcoordination polymers that based on tripodal carboxylate ligands and transition metalions or lanthanide metal ions under solvothermal conditions. This thesis is dividedinto four chapters.In the first chapter, we introduced the basic conception of coordination polymer,the research progress of the coordination polymers that based on tripodal carboxylateligands as well as the significance and the progress made in this topic.In the second chapter, five coordination polymers, Mn₃（tci）₂（DMF）₂（H₂O）₂（1）,[Mn₃（tci）₂（DMA）₄].2DMA （2）,[Mn（Htci）（bpe）0.5].H₂O （3）,[Cu（Htci）（bpy）]·0.5H₂O（4） and [Cu₃（tci）₂（bpp）₂（H₂O）]·3H₂O （5） have been successfully constructed bytris（2-cyanboxyehtyl）isocyanurate.1features a3D porous coordination polymerconstructed by1D {Mn-（2-O）-Mn}nchains linked by tci ligands,2is a2D layerwhich can be rationalized as a CdI2-type network,3is a3D pillar-layered structure,4is a3D self-penetrating framework which results from two-fold interpenetrating4-connected CdSO4nets linked by carboxylate oxygen atoms of tci ligands,5is a3Dself-penetrating3,4,6-connected3-nodal net constructed by two-fold interpenetratingnets connected by bpp ligands.In the third chapter, six metal-organic coordination polymers, [La（BTATB）（DMF）₂（H₂O）]·2H₂O·DMF （6）,[Eu（BTATB）（DMF）₂（H₂O）]·2H₂O·DMF（7）,[Tb（BTATB）（DMF）₂（H₂O）]·2H₂O·DMF （8）,[Er（BTATB）（DMF）₂（H₂O）]·2H₂O·DMF （9）,[Er（BTATB）（H₂O）₂]·4H₂O·2DMA （10）,[Yb（BTATB）（H₂O）₂]·4H₂O·2DMA （11）,[Lu（BTATB）（H₂O）₂]·4H₂O·2DMA （12） havebeen constructed by highly symmetrical tripodal carboxylate ligand4,4’,4’’-（benzene-1,3,5-triyltris（azanediyl））tribenzoic acid and lanthanide metal ionsunder different solvothermal conditions. Of which,6,7,8and9are isostructural, areinterdigitated metal-organic frameworks,10,11and12are isostructural, are bilayermetal-organic frameworks.In the conclusion, we have summarized the structures of the twelvemetal-organic coordination polymers and discussed the effect of solvent system in theconstruction of coordination polymers. The research provided a new route for thedesign and construction of metal-organic coordination polymers with noveltopologies.