Synthesis, Crystal Structure And Properties Of Benzimidazole,Pyrazine Schiff Base Ligands And Complexes

Coordination polymer is a Cross-disciplinary subject developed on the basis of inorganic chemistry, which is often formed by the interaction of metal ions and organic ligands through coordinated effect, hydrogen bond,π-π bond and so on. At last, they construct into polymers with0,1,2or3dimensionals.Schiff Base is refer to a kind of compond contain imine and methyleneimine groups(R1-R2C=N-R3). Due to its unique optical, electrical, magnetic and other physical material properties, well coordination and chemical properties and a unique antibacterial, anticancer, weeding and other physiological activity, it has attractived widespread systematic and depth theoretical research. In recent years, Schiff base also has a broad application prospects in the material field. With the development of scientific and social progress, study of the Schiff base will be broader, and will be also applied to many areas. To obtain new Coordination polymers with multi-dimensions struct, we complete three sections as follows:1. Synthesis, Characterization of two types of benzimidazole schiff base ligand.We synthesis two types of benzimidazole schiff base compond in chainlike rows by many steps. They have been characterized by melting point, elemental analysis, infrared spectroscopy and1H-NMR spectroscopy. At last we discussed the coordination performance and functional applications.2. Synthesis, Crystal structure, Characterization and Properties of two pyrazin-amide Schiff base ligand and three complexes.We synthesis two types of pyrazinamide Schiff base ligand use2-Acetylpyrazine as material, They have been characterized by melting point, elemental analysis, infrared spectroscopy. And also we got three crystal structers of the related complex and analyzed them by XRD, Test their properties in many ways and discussed them.3. Synthesis, Characterization of chiral schiff base contain two hydroxyl groups.Use (L/D)2-alaninol as material, two chiral schiff bases contain two hydroxyl groups were synthesised and characterized. They have been characterized by melting point, elemental analysis, infrared spectroscopy and1H-NMR spectroscopy. Test their dissolubility and discuss it’s application in construct new3-D structure.