The Preparation And Characterization Of Asymmetric Schiff-base Coordination Compounds Derived From Diaminomaleonitrile(DAMN)

In recent years,the study of schiff base not only focuse on the study of functional materials and its formation mechanism but also their optical properties.Considering the function and application,schiff base especially asymmetric schiff base shows much more importance.They are similar to mixed ligands,owe different donor coordination atoms and structural characteristics of the application which are superior to symmetrical schiff base complexes.Certain progress has made at present on the schiff base compounds and their complexes in medicine,catalysis,analytical chemistry,corrosion,and the application of photochromic field.The asymmetric synthesis of new schiff base complexes is of more important.In this thesis,on the basis of previous studies in our group,we further explored new DAMN(diaminomaleonitrile)schiff base complexes.With the original design of synthetic L1 tetradentate ligand,we design and synthesis new L2 conjugate ligand,and L3 ligand.We also synthesized their complexes.By FT-IR,XRD,elemental analysis,TGA and X-ray single crystal diffraction analysis testing means for the synthetic complexes,we characterized and analyzed the properties of these complexes.