The Application Of One Supramolecular Bimetallic Macrocyclic And The Coordination Chemistry Of Nitrogen Herterocyclic Ligands

Currently,the chemistry of supramolecular coordination polymer is becoming an active research field in chemical industry.Self-assembly of organic ligands and inorganic metal ions is one of the most efficient approaches for the constraction of organic-inorganic composite materials.In this thesis,we have synthesized a series of ligands capped by pyridyl groups and pyridine-N-oxide groups.We have obtained 12 novel coordination polymers by self-assembly with these ligands and transition-metal ions.New coordination compounds were characterized by X-ray single-crystal diffraction,IR,TGA.In addition,a highly efficient reusable triplet oxygen collector and singlet oxygen generation of Cu(?)-Ag(?)bimetallic macrocyclic metal-organic framework were thoroughly studied.?.A novel peroxide dianions can embedd Cu(?)-Ag(?)supramolecular bimetallic macrocycle and completely release the inserted peroxide dianion as the singlet oxygen(1O2)via H+ assisted disproportionation.The process was tracked by UV-Vis absorption spectrum,IR absorption spectrum and Spin-resonance spectroscopy(ESR),and the mechanism was preliminary studied.We also studied the process of the degradation of dye rhodamine B by Cu(?)-Ag(?)supramolecular bimetallic macrocycle.?.Four ligands bridging by 1,2,4-Triazole with the pyridine-N-oxide groups were synthesized and four ligands bridging by 1,3,4-oxadiazole with the pyridine-N-oxide groups were synthesized.Three novel coordination compounds based on the ligands and Cu(I)were obtained,and their crystal structures have been characterized.?.One ligand with pyridyl group was synthesized.Five complexes based on the ligand and Cu(?),Co(?),Ni(?)were obtained,and their crystal structures have been characterized.We have investigated the self-assembly chemistry of pyridyl ligand bridging by 1,3,4-oxadiazole and Cu(?),Zn(?),Co(?),Ni(?).Four complexes were obtained and their crystal structures have been characterize.