Research On The Preparation And Properties Of Metal-Organic Coordination Polymers

Metal-organic coordination polymers are a type of self-assembly formed by organic ligands and metal ions. Diversified structures of the coordination polymers result in unusual properties of the novel materials. Duo to the structure multiformity of multidentate organic ligand with the sulfur and aryl, they can assemble out complexes of novel structures and unique fuctions if coordinated with metal ions. They have shown distinctive optical, electrical, and magnetic properties, thus they have a potential applied prospect in nonlinear optics, magnetic and catalytic materials.The subject is to synthesize and analyze the property of sulfur metal-organic coordination polymers. In this dissertation, we do the summary of the development and achievements of metal-organic coordination polymers. In this paper, we use p-phenylenediamine or p-dihydroxybenzene as small organic molecules to react with carbon bisulfide in alkaline condition. We find out the appropriate reaction condition on the basis of repeated experiments, and synthesize organic ligand with the sulfur as coordination atom in the condition of refluxing. Then we use the acquired ligands to react with transition metal ions under surfactant by solvothermal and homogeneous techniques and get the corresponding transition metal complexes with the sulfur atom. We have explored the influences of all kinds of synthesis factors for their morphologies. Finally, through analytical methods such as FTIR, EDS, SEM, TEM, UV-vis, we characterize the ligands and complexes, and suggest that the Cd(â…¡) complex is a semi-conductor.