| Coordination polymers and supramolecular architectures formed through the deliberate selection of metals ions and multifunctional ligands have received much attention for their fascinating structural diversity and specific functionality, which have made them highly promising in various applications, molecular absorption, catalysis, electronic-conductive, optical and magnetic materials. The design and synthesis of materials with novel structures are topics of current interest and of great challenge. The factors that governing the formation of the frameworks of polymers include not only the size, structure and coordination properties of ligands and the inherent properties of metal ions, but also the temperature of reaction, pH of reaction, the ratio of ligands and metal ions as well as the way of cooling. Recently, the design of coordination polymers through the self-assembly of the ligands and metal cations has achieved much progress.The aim of this thesis is the synthesis of new coordination polymers on the basis of five N-containing heterocyclic ligands [1,10-phenanthroline (phen), Dipyrido[3,2-d:2′,3′-f]quinoxaline (Dpq), dipyrido[3,2-a:2′,3′-c]-phenazine (Dppz), 1,10-phenanthroline-5,6-diamine (Dap), and 1,3-bis(4-pyridyl)propane (bpp)] and metal ions with mixed ligands (N-containing ligands and aromatic polycarboxylic acid or polyoxometallates) using the self-assembly and hydrothermal reaction. Ten new coordination compounds have been synthesized on the basis of hydrothermal technique and/or solvent synthesis methods and structurally characterized by elemental analyses, IR, TG and single crystal X-ray diffractions. The electrochemical and electrocatalytic activity some of polymers and fluorescent property of compound have been studied. This dissertation is divided into four parts.1. One briefly introduce about the concept and development of coordination polymers are given, as well as the current survey, research significance, reviews on the coordination polymers constructed from ligands including N-containing heterocyclic ligands and carboxylic acid.2. Three new copper coordination polymers were successfully obtained based on three aromatic polycarboxylic acid [isophthalic acid (1,3-H2BDC), 1,3,5-benzenetricarboxylate (1,3,5-H3btc) and terephthalic acid (1,4-H2BDC) and N-containing ligands (Dpq), repectively. It has been demonstrated that the terminal ligands play a critical role in the construction of the supramolecular motifs by providing interaction information for the interchain or interlayer recognition. In addition, the electrochemical and electrocatalytic activities of the complexes have been studied.3. Four complexes have been prepared with two transition metals (NiII and CdII) using three N-containing ligands (Dpq, Dppz or Dap) and three different benzene dicarbonic acid [phthalic acid (1,2-H2BDC), 1,3-H2BDC and 1,4-H2BDC] as mixed ligands. The results of investigation show that the size, structure and coordination properties of ligands and the inherent properties of metal ions governed the structure of the complexes. Moreover, the fluorescent property of the cadmium complex has been studied. 4. Three new compounds constructed from polyoxometalate anions and N-containing ligands (bpp or phen) have been synthesized, formula as[Cu2(bpp)4(H2O)2](SiW12O40)·～6H2O (8), (H2bpp)3[SiW11O39Co]·～2H2O (9) and {H2[Cu2(phen)2(μ-ox)][Mo8O26]}·4EtOH·Et2O (10). Compound 8 represents the first 2-D interpenetrating cationic MOFs templated by Keggin-type anions [SiW12O40]4-. The electrochemical and electrocatalytic properties of 8 and 9 are investigated.
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