| Recently,Metal-organic Frameworks,due to its rich variety of types,structure,topology and showing a good application prospect on gas adsorption and separation,molecule and ion exchange,heterogeneous catalysis,drug delivery,proton conduction,photology,electricity and magnetism,etc[1-5],become a kind of new functional materials,and have generated much interest among the scientific research workers.In the process of design and synthesis of metal-organic frameworks,organic ligand plays a very important role[6].In this paper,the four carboxylic acid ligands have been choosed,respectively,the flexible carboxylic acid ligand 4,4'-bis?carboxy methoxy?diphenyl ether?H2L1?,3-?3-?carboxymethoxy?phenyl?propanoic acid?H2cpa?and two phenanthroline derivatives of carboxylic acid?HL2 and HL3?as major organic ligands?Scheme 1?,4-?3-pyridin-4-yl?propyl)pyridine?Hpp?,4,4'-bipyridine?Hbpy?and 2-?2H-pyrrol-2-yl?-2H-pyrrole?Hpy?as the second organic rods.Due to the vigorous development of cluster compounds in recent years,attracting the most chemists study,so some titanium clusters of basic research with phenyl phosphonic acid have been explored and obtained a titanium clusters.The synthesis,crystal structures,PXRD,IR,thermal properties and luminiescent properties of partial coordination polymers have been reported.Under the hydrothermal synthesis conditions,The flexible carboxylic acid ligands were been chosed to successfully obtain different coordination complexes:1.Under the hydrothermal synthesis conditions,the coordination complexes based on H2L1 ligand have been successfully synthesized,containing structures formulated as:[Na2?L1??H2O?2]n?1?[Zn(C12H8O3)(C18H12N6)]n·n(Ca2H10O3)·2n?H2O??2?2.Under the hydrothermal synthesis conditions,five coordination complexes based on H2cpa ligand have successfully synthesized,containing structures formulated as:[Ba?cpa??pp??H2O?]n·2nH2O?3?[Co?py?3]·?cpa??4?[Cu?py?2]·?cpa??5?[Cd?cpa??bpy?]n?6?[Co?cpa??bpy?]n?7?[Cu?cpa??H2O?2]n?8?[Eu?cpa??H2O?2?bpy?1/2]n?9?Under the hydrothermal synthesis conditions,phenanthroline derivatives as ligand were chosed to successfully obtain different coordination complexes:1.The HL2 as major organic ligands,containing structures formulated as:[Co2(C20H14N4)4?HCO2??H2O?3]·?CH3CH3NH??10?[Ni2(C20H14N4)4?HCO2??H2O?3]·?CH3CH3NH??11?2.The HL3 as major organic ligands,containing structures formulated as:[Zn?L3?2]n·0.5H2O?12?Titanium clusters based on Phenyl phosphonic acid,containing structures formulated as:C34H72N2O28P4Ti6?13?To sum up,this thesis were prepared under hydrothermal conditions of metal-organic aromatic carboxylic acid coordination polymer with transition metals and alkaline earth metal etc.It reports the synthesis conditions and methods,and describes in detail the crystal structure.The success of these coordination polymer successfully obtain and design,not only riching metal-organic coordination polymer structure and the type,but also giving theoretical basis and experimental basis for the study of metal-organic coordination polymer functional materials for further research and development.And increasing along with the development of the current cluster compounds,the synthesis of titanium clusters were explored for further study on cluster compounds. |
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