Synthesis And Characterization Of Metal Complex With Containing Nitrogen And Carboxylic Acid Ligands

Six kinds of metal complexes of containing nitrogen and carboxylic acid ligands were synthesized by hydrothermal method, solid-solid reaction method at room temperature and self-assembled reaction in liquid phase. The compositions and structures of the complexes were characterized by complexometric titration,element analyses, infrared spectra, single crystal X-ray diffraction analyses, X-ray powder diffraction, thermogravimetry and differential scanning calorimetry(TG-DSC). The main work of this paper is as follows:(1) Three kinds of picolinic acid complexes [Co(pic)2(H2O)2]?2H2O,[Cu(pic)2]?2H2O and [Co(H2O)5][Co(dipic)2]?2H2O were synthetized with2-picolinic acid(Hpic) or pyridine-2,6-dicarboxylic acid(H2dipic) and cobalt(II)chloride or copper acetate as raw materials.(2) The two-dimensional network dinuclear bismuth(III) complex[Bi2(Hedta)2]?4H2O and the antimony(III) complex [Sb(Hedta)]?2H2O were synthetized with ethylenediaminetetraacetic acid and bismuth nitrate or antimony trioxide as raw materials.(3) The metal-organic coordination polymer(MOFs) with novel multidimensional structure and single crystal [Ni2(μ4-btca)(1,4-bib)2(H2O)2]n was synthetized with 1,2,4,5-benzenetetra-carboxylic acid, 1,4-bis(1H-imidazol-4-yl)benzene(1,4-bib) and nickel chloride hexahydrate as raw materials.