Synthesis And Research Of Six Membered Heteroaromatic Ring Bridging1,2,4-Diazaphosphospholes And Their Complexes Of Cu~Ⅱ、Cu~ⅠFe~Ⅱ

Based on The diversity of the structure of the product andinnovative performance,molecularself-assembly become the mainway of preparation organicinorganic composite materials.So it hasa wide range of applications in different areas,such as the synthesisof nanomaterials,magnetic materials. The study found that theperformance of the organic ligand plays a vital role in the formationof self-assembled product and previous research has mainlyfocused on nitrogen-containing heterocyclic ligands.Phosphinehybrid pyrazole compared with the traditional nitrogen orphosphorus-containing ligands,ligand strength and coordinationmodes diversification. In this paper, in order to get a new kind ofstructure we combine phosphine mixed pyrazole and thenitrogen-containing heterocyclic compounds of pyrimidine andpyridazine and by ligand is self-assembled with metal ions to givethe novel metal complex structure.This work mainly includes the following three aspects:First,a phosphinic heteroaryl pyrazole synthesis conditionswere optimized, and synthesised five phosphonic heteroaryl pyr azole:1-H-1,2,4-phosphinic heteroaryl pyrazole,1-H-3,5-dimethyl-1,2,4, phosphonic heteroaryl pyrazole,1-H-3,5-diisopropyl-1,2,4-phosphine heteroaryl pyrazole,1-H-3,5-diphenyl-1,2,4-phosphinic heteroaryl pyrazole and1-H,-3,5-di-tert-butyl-1,2,4-phosphinic heteroaryl pyrazole.Second,we used all above compounds and4,6--dichloro-pyrimidine and3,6-dichloropyridazine synthesized four pyrimidin phosphine heteroaryl pyrazole ring compounds and two pyridazinphosphine heteroaryl pyrazol oxazole ring compounds, these sixnew ligands were characterized by NMR, IR and X-ray single crystal diffraction analysis. Monocrystalline figure shows the keyway that they are symmetrical bidentate ligand monocrystalline are π-π stacked. The compound4,6-bis (3,5-diphenyl-1,2,4-phosphonic heteroaryl pyrazole-1-yl) pyrimidin-single crystal structure shows that the pyrimidine ring in the compound as well as the four benzene ring and phosphine heteroaryla pyrazole ringin the same plane, is a conjugated large π system, can be used as free radicals in the future to study its performance.Third,used the4,6-bis (1,2,4-phosphinic heteroaryl pyrazole)pyrimidine,4,6-bis (3,5-dimethyl-1,2,4-phosphinic heteroarylpyrazole) pyrimidine and4,6-bis (3,5-di-isopropyl-1,2,4-thephosphine heteroaryl pyrazol-1-yl) pyrimidine as a self-assembledconstruction unit with the Cu~Ⅱ, Cu~Ⅰ, Ag~Ⅰ, and Fe~Ⅱself-assembly to geta new type of metallic Cu~Ⅱ, Cu~Ⅰ, Ag~Ⅰand iron~Ⅱcomplexes, The structure of the compounds were investigated systematically by IRdiffraction analysis.