The Synthesis And Research Of Compounds Based On Azido And Formate

Coordination chemistry is the bridge of organic chemistry and inorganic chemistry,and it is also the interdiscipline subject of many other disciplines,such as environmental science,structural chemistry,material science and so on,which has a wide range of practical application value in real life.Coordination compounds are the main research contents of coordination chemistry,design and synthesis of these compounds with novel structure and excellent properties is a hot topic in current research.Both azido anion and formate have strong coordination ability and rich bridging modes.They can coordinate to more than one metal center and mediate a variety of magnetic coupling effectively,which are the most commonly used two bridging ligands in the synthesis of functional compounds.Therefore,the great interest of metal-azido compounds and metal-formate compounds are developing radically.In this work,we have synthesized 6 cases of the metal-azido compounds by hydrothermal method and 3 cases of compounds which formate involved by solvothermal method.The results are as follows:1.We choose azido as the bridging ligand and five kinds of auxiliary ligand coordinating to different metal salts by hydrothermal method.Six metal-azido compounds are obtained finally;their structures were characterized and determined.Compound 1,2,3 and 6 are three-dimensional network structure,compound 4 and 5 are two-dimensional layered structure.Azido contains five different coordination modes,they are μ_1,1（EO）,μ_3-1,1,3,μ_{4-1,1,3,3,μ1,3/syn,anti}（EE）and μ_1,3/syn,syn（EE）.2.We choose formate as the bridging ligand and three kinds of auxiliary ligand coordinating to different metal salts by solvothermal method.Three compounds are obtained finally;their structures were characterized and determined.Two kinds of amine ion which are from DMF pyrolysis involved in the 3D network of compound 7.The formate of compound 8 is not coordinated,which is used for maintaining pH.The magnetic properties of compound 9 indicate antiferromagnetic interactions and field induced spin-flop at low temperature.