| The coordination polymers are of great current interest because of their potential applications, such as asymmetric heterogeneous catalysis,enantioselective seperations, biomimetic chemistry, absorption,ion exchange and optical materials. Then pyridine carboxylic acid and Imidazole carboxylic acid ligand contain O atom and N atom, and have various coordination modes. 2,3-H2 PDC, 3,5-H2 PDC and Nic all have pyridine ring and carboxyl group, Hima and H3 pimdc all have Imidazole ring, these features are provided them the possibility to obtain complexes with different of structure. In order to study the different of coordination characteristics and the structure of these ligand synthesis,2,3-H2 PDC,3,5-H2 PDC,Nic, Hima and H3 pimdc are used as the chief ligand,15 flexible and diverse structures of carboxylic acid metal complexes were the hydrothermal synthesis. Single-crystal X-ray diffraction,elemental analysis,IR spectrum, Cyclic Voltammetry(CV) and. The results will be used for reference by electrochemical analysis.This paper is divided into seven chapters.The first chapter is the introduction, introduces the research and development of the complex, the potential applications, such as asymmetric heterogeneous catalysis,enantioselective seperations,biomimetic chemistry, absorption, ion exchange and optical materials.This part also introduces the research situation 2,3-H2 PDC,3,5-H2 PDC,Nic, Hima and H3 pimdc.The second chapter reported 2,3-H2 PDC is used as the chief ligand,mental salt is Cd Cl2·2H2O,Fe Cl2·4H2O å'Œ Ba Cl2,DMF,methanl,ethanol and water solution are used as solvent, we synthesize these complexes:[Cd4(2,3-pdc)4·4H2O](1),[Fe4(2,3-pdc)4·12H2O](2),[Ba4(2,3-pdc)4·12H2O](3). Complexes 1-3 were characterized by Single-crystal X-ray diffraction,elemental analysis, IR spectrum, Cyclic Voltammetry(CV) and. Results show that complex 1 is 3D structure, complexes 2and 3 are 1D structure, which form a 3D supramolecular structure according to the role of O-H…N,O-H…O and Ï€-Ï€ interactions.The third chapter reported 3,5-H2 PDC is used as the chief ligand,mental salt is Fe Cl2.4H2O(complex 4),3,5-H2 PDC is used as the chief ligand, imizadole is used as the second ligand, mental salt is Cu Cl2·2H2O(complex 5), DMF, methanol, ethanol and water solution are used as solvent, we synthesize these complexes:[Fe4(3,5-HPDC)4·8H2O](4),[Cu4(3,5-pdc)4(IMZ)8](5),Complexes 4-5were characterized by Single-crystal X-ray diffraction, elemental analysis,IR spectrum, Cyclic Voltammetry(CV). Results show that complexes 4and 5 are 2D structure, complexes 4 forms a 3D supramolecular structure according to the role of O-H…N,O-H…O.The fourth chapter reported nic is used as the chief ligand,mental salt is Ni Cl2.6H2 O,DMF, methanol, ethanol and water solution are used as solvent, we synthesize these complexes: [Ni4(nic)8]·2H2O(6).Complex 6was characterized by Single-crystal X-ray diffraction, elemental analysis,IR spectrum, Cyclic Voltammetry(CV). Results show that complex 6 are3 D structure.The fifth chapter reported Hima is used as the chief ligand,mental salt is Fe Cl2·4H2O(complex 7),Hima is used as the chief ligand, 2,2’-Bipy is used as the second ligand, mental salt is Cu Cl2·2H2O(complex 8), DMF,methanol, ethanol and water solution are used as solvent, we synthesize these complexes:[Fe2(Hima)4](7),[Cu4(2,2’-Bipy)4Cl4(Hima)4]·12H2O(8),Complexes 7-8 were characterized by Single-crystal X-ray diffraction,elemental analysis, IR spectrum, Cyclic Voltammetry(CV). Results show that complex 8 is 2D structure, complex 7 is 1D structure, Complex 7forms 3D-dimension via hydrogen bonds and π–π stacking interaction.The sixth chapter reported complexes 9-13 are synthesized according to the following method, H3 Pimdc is used as the chief ligand,2,2’-Bipy is used as the second ligand, mental salt is Co Cl2·6H2O,Ni Cl2·6H2O,Zn Cl2,,Cu Cl2·2H2O å'Œ Pb Cl2, DMF, methanol, ethanol and water solution are used as solvent, we synthesize these complexes:[Cd4(2,3-pdc)4·4H2O](1)[Fe4(2,3-pdc)4·12H2O](2)[Ba4(2,3-pdc)4·4H2O].4Ba(OH)2(3)[Fe4(3,5-HPDC)4·8H2O](4)[Cu4(3,5-pdc)4(IMZ)8](5)[Ni4(nic)8]·2H2O(6)[Fe2(Hima)4],(7)[Cu4(2,2’-Bipy)4Cl4(Hima)4]·12H2O(8)[Co4(Hpimdc)4(2,2’-bipy)4]·2H2O(9)[Ni4(Hpimdc)4(2,2’-bipy)4]·2H2O(10)[Zn4(Hpimdc)4(2,2’-bipy)4]·2H2O(11)[Cu8(H2Pimdc)8(2,2’-bipy)8]·5H2O(12),[Pb(H2Pimdc)2·2H2O].2H2O(13),complexes 14-15 are synthesized according to the following method, H3 Pimdc is used as the chief ligand,Phen is used as the second ligand, mental salt is,Ni Cl2·6H2O,Zn Cl2 å'Œ Mn Cl2·4H2O, DMF, methanol, ethanol and water solution are used as solvent, we synthesize these complexes:[Ni(H2pimdc)2(Phen)]·0.3H2O(14),[Mn(Hpimdc)(Phen)]·H2O(15),Complexes 9-15 were characterized by Single-crystal X-ray diffraction,elemental analysis, IR spectrum, Cyclic Voltammetry(CV). Results show that complexes 9-15 is 0D structure, complexes 9-15 form3D-dimension via hydrogen bondings.The seventh chapter summarizes experimental results and the deficiencies, and makes hopes and suggestions for future work. |
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