Syntheses,Structures And Properties Of Complexes Constructed From Imidazophenanthroline Derivative Ligands

In recent years,complexes have attracted wide attention due to their pragmatic and latent applications and their beautiful and sophisticated crystalline structures,as they have the potential to acquire a wide variety of aesthetically interesting structures,which may also be of great interest in many applications related to porous materials.There are fifteen coordination compounds with different dimensionalities are successfully designed and synthesized by the reactions of 2-?3,4-dimethylphenyl?imidazo?4,5-f??1,10?-phenanthroline?HL1?and tetrapyrido[3,2-a:2?,3?-c:3?,2?-h:2?,3?-j]phenazine?tpphz?with rare earth and transition metal salts under hydrothermal conditions.X-ray single crystal diffraction?XRD?,elemental analysis,infrared spectroscopy?IR?,electrochemical workstation and X-ray powder diffraction?PXRD?were used to analyze and characterize the structures,and the thermal stability?TGA?electrochemical and magnetic properties of these complexes were studied.The full text is divided into three chapters,the introduction is as follows:Chapter 1:The crystallization nucleation,growth and classification of complexes were reviewed systematically.The research progress of 1,10-phenanthroline complexes was reviewed.Chapter 2:Twelve new coordination compounds have been synthesized successfully under hydrothermal conditions by 2-?3,4-dimethylphenyl?imidazo?4,5-f??1,10?-phenanthroline,rare earth and transition metal salts.1-Mn?2-Mn?6-Eu?7-Tb show 0D structures,4-Pb exhibits a 1D chain and 5-Pb?8-Tb?9-Dy?10-Ho?11-Er?12-Er exhibits a 2D layered structure.The structures of the 12 complexes were described in detail,Where 8-Tb?9-Dy?10-Ho?11-Er are isomorphic.The experimental results of 4-Pb and 5-Pb were discussed because the auxiliary ligands used were glutaric acid and adipic acid,respectively,which resulted in two different dimensional complexes.The magnetic properties of 2-Mn,8-Tb,9-Dy,10-Ho and 11-Er and were studied.The electrochemical detection of catechol at the modified electrode GCE/[Pb₂?HL1?₂?adip?₂]_nwas studied by using 5-Pb modified on a bare platinum carbon electrode.The results showed that GCE/[Pb₂?HL1?₂?adip?₂]_ncould be used as a sensor to detect catechol.Chapter 3:Three lanthanide complexes were successfully synthesized by the reaction of tetrapyrido[3,2-a:2?,3?-c:3?,2?-h:2?,3?-j]phenazine and rare earth metal salts under hydrothermal conditions.13-Nd show 3D net structures,14-Ho exhibits a 2D layered and15-Er exhibits a 1D chain.The structures of the three rare earth metal complexes are described in detail,and the factors affecting the dimension of the complexes are discussed.The results show that GCE/[Er?tpphz?₂?1,4-bdc??OH??H₂O?]_nprepared by 15-Er can be used as an electrochemical sensor for the detection of catechol.