Synthesis, Characterization And Further Functional Of Compounds Based On Covalent Bonded Aminophenol-Polyoxomolybdates

The previous transition metal ions combining with oxide are able to form molecular metal-oxide cluster anions,commonly referred to as polyoxometalates or polyoxoanions(POMs).They are good receptor molecules because of the properties of POMs such as the storage of clectrou and proton,the supramolecular compounds can be combined with inorganic elements,organic molecules(including macrocyclic compounds)and ion.More excellent properties of these organoimido derivatives can be adjusted by strong d-Ï€interactions between POM and organic imide ligand.where space occupied by conjugationÏ€electron of the ligand may be extended to the inorganic framework of POM.The aim of is to prepare new organoimido derivatives of POMs in the light of the principles of molecule design.The researches on structures,properties and structure-property relationships of the novel compounds will play an important part in explorations and developments of new catalyzers,electric-materials and photoelectric-materials.In this dissertation,on the basis of previous studies,using DCC dehydration method suitable for more study of the synthesis of acid derivatives,compounds used for paracetamol series ligand,Lindqvist type structure containing molybdenum more radical and chemically modified derivatives,and its use of esterification for further chemical modification. thus achieving molybdenum imine derivatives organic radical elements of the functional groups.Therefore,the dissertation research,can expand acid derivatives preparation,understanding the structure and specific pcrformance of such organic-inorganic hybrid materials,this makes it important for the guidance of the compounds in the actual work.In this dissertation,three new organoimido derivatives has been synthesized by DCC dehydration method.and(n-Bu₄N)₂[Mo₆O₁₈≡(NAr)₂] (Ar=p-C₆H₄OH)has been structurally characterized by X-ray single crystal diffraction.Through the esterification of(n-Bu₄N)₂[Mo₆O₁₈≡NAr] (Ar=o-C₆H₄OH)for further function.Polymorphism has been discovered in organoimido and characterized their structure.All the new complexes were characterized by Elemental analysis,IR,and UV-Vis.Some of the complexes were also characterized by ¹H NMR and thermogravi- metric analysis.The researches on synthesis reactions for these hybrid compounds have been done,in order to look for the optimal conditions.