| Polynuclear metal clusters are an important branch of inorganic chemistry,with topological and polyelectronic properties.Polynuclear metal clusters are widely used in many fields.For example,polynuclear metal clusters can be used as catalysts in the field of catalytic chemistry,as supporting materials in the field of biochemistry,and as porous materials in the field of material science.Due to its wide application,people have a strong interest in the synthesis of metal-oxygen clusters.Metal-oxygen clusters with new structures have been reported frequently.However,inorganic chemists are still exploring the mechanism of reasonable synthesis of polynuclear metal clusters.Our research team has been focusing on the transition metal clusters for several years.As part of the continuation of this series of work,this thesis mainly describes the synthesis,structure and properties of the two compounds.After a lot of experimental exploration,tartaric acid was selected as the ligand.Cu?OAc?2·H2O,Fe2?SO4?3·xH2O,L-tartaric acid and guanidine carbonate-acetic acid solution were mixed and stirred at room temperature to obtain the red-brown crystals.Cu?OAc?2·H2O,Fe2?SO4?3·xH2O,L-tartaric acid and triethanolamine solution were mixed and stirred at room temperature to obtain green crystals.Our synthesis process is simple and mild,and the compounds are prepared in aqueous phase.The single crystal structure of the experimental product was obtained by X-ray single crystal diffraction test.On this basis,the products were characterized by X-ray powder diffraction,infrared spectrum analysis,dynamic light scattering,thermogravimetry,circular dichroism,Circular dichroism,dynamic light scattering and X-ray powder diffraction.For the study of magnetic properties of the compounds,we tested the variable-temperature susceptibility and the variable-field susceptibility. |
PDF Full Text Request