| The coordination polymers based on covalent bonds have received much attention for their novel structural and specific functionality. In rencet years, supramolecular complexes linking by hydrogen bonds have more and more antentive, not only maked up the insufficient of the structure and performance based on synthetic chemistry theoretical and experimental study, and but also is further expanded the application prospect of adsorption, fluorescence, electric, magnetic, catalyst and so on. In this article, the coordination polymers and supramol -ecular complexes have been synthesized by pyridine-2,3- dicarboxylic acid, benzene-1,3,5 -tricarboxylic acid and 1,10-phenanthroline ligands under hydrothermally conditions. This dissertation divides into four chapters and the main contents and conelusions are listed as following:The first chapter summarizes the research survey and the development of coordination chemistry, the classification, the current situation of the study and significance of the coordination polymers.The second chapter, the two metal-organic coordination polymers [Zn(2,3-Pydc)( phen)]n·nH2O(1), [Co(2,3-Pydc)(phen)]n·nH2O (2) have been synthesized by pyridine-2,3-dicarboxy- lic acid and 1,10-phenanthroline ligands in hydrothermally conditions. Compound 1, the center atom Zn is six-coordinational and constructs [Zn(Pydc)(1,10-phen)]·H2O units. The basic unit possesses a one-dimensional infinite polymeric chain containing the unique hydrogen bonds, in which the hydrogen bonds are constructed via one O atom of the carboxylate group in the meta-position and one lattice water molecule, and the polymeric chain is further extended to a three-dimensional structure byπ-πstacking interactions between one pyridyl ring with the central benzene ring of a symmetry-related 1,10-phen molecule. Compound 2 exhibits a two-dimensional network coordination architecture containing one-dimensional zeolite-like chains with 2,3-Pydc groups as the bridge ligands, and the adjacent network constructe 3-D framework viaπ-πinteractions. Complexes illustrate thermal stability at room temperature. The paramagnetic of complex 2 was derived by the ESR spectrum.The third chapter, one-dimensional chain of metal-organic coordination polymer [Mn2(phen)2(BTC)2(H2O)2]n(1) and [Fe(BTC)1/4(Phen)(H2O)]·[Fe1/2(HBTC)3/4(H2O)1/2]n(2) have been hydrothermally synthesized by benzene-1,3,5-tricarboxylic acid and 1,10-phenanthroline ligands, and structurally characterized by elemental analysis, TG, IR spectrum and single-crystal X-ray diffraction. For complex 1 exhibit infinite 1D double-chain structure, and the chain are connected throughπ-πinteractions and hydrogen bonds. For complex 2, BTC anions act as tetradentate ligands, andcoordinate to zinc cations to form a net with(4·62)(63) topology. Magnetic properties for 1 and 2 are also discussed in detail.The four chapter, the six suparmolecular compounds: [Ni(H2O)6]·[Ni2(phen)2(BTC)2 (H2O)4]·4H2O(1), [Co(H2O)6]·[Co(phen)2(H2O)2]2·(BTC)2·24.6H2O(2), [Ni(H2O)6]·[Ni(phen)2 (H2O)2]2·(BTC)2·22H2O(3), {[Co(phen)(HBTC)(H2O)3]·2.5H2O}n(4), [Cu(phen)(HBTC) (H2O)2]·H2O(5), [Cd(phen)(H2BTC)2]n(6) have been hydrothermally synthesized and structurally characterized. In these six compounds, the isolated structure are linked further by hydrogen bonds (O―H···O) to three dimensional supremolecular structure. The cyclic volatmmetric behavior of the complex 2 and 3 were also investigated for definition of the identity of the couple of redox peaks. The fluorescent analysis of complex 3 shows that has two emission speaks at 383 and 469 nm. |
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