Design And Study Of Supramolecular Complexes Containing Rich-nitrogen Heterocyclic Ligands

As rich N-heterocyclic compounds, pyrazole and its derivatives possess many different coordination sites and good coordination ability. As a result, they can form different coordination modes and multifunctional complexes with transition metals. The complexes like these have many advantages, such as larger conjugated system, good planarity, stable structure, and so on. They can use for transmitting of electron and energy. On the other hand, they exhibit excellent application in the wide fields of supramolecular chemistry, biological activity, sensors, oxidation, catalytic bromide, magnetic and photovoltage.In this thesis, we used pyrzaole and its derivatives as raw materials, and synthesized7ligands and15complexes with transition metals. All complexes were characterized by the elemental analysis, IR spectroscopy and X-ray single-crystal diffraction. Some of them were also characterized by UV spectroscopy, thermogravimetric analysis, X-ray powder diffraction The details contents of the paper are instructed as follows:1. We designed and synthesizied7ligands by2,4,6-trichloro-1,3,5-triazine,3,5-dimethyl-pyrazol, triethylamine, sodium hydride, tetrahydrofuran,1,4-bis(bromomethyl)benzene,1,4-bis(dibromomethyl)benzene, etc as raw materials. The ligands are characterized by IR spectroscopy and studied the rule of synthesis in detail.2. Based on these ligands,15transition metals complexes with assistant ligands were designed and synthesized firstly in different reaction systems. We research the distinctions of synthesis, properties and structures for these complexes.