| Coordination complexes have attracted much attention recently. Because of theirtopological structure and unique optical, electrical, magnetic and other physicalproperties, they have a lot of potential applications in optics, magnetism, gas-uptake,nonlinear optics, biology and catalysis. In this dissertation, the syntheses, structure,magnetic properties, fluorescence properties and catalytic activities of transition metalcomplexes based on aryloxy-pyridyl and imidazolyl-pyridyl ligands have been reported.Eighteen coordination complexes were prepared under solvothermal conditions byreactions of transition metal ions with the ligands. The magnetic property of onecomplex was investigated, and the fluorescence properties of three complexes werestudied. We have determined catalytic activities of two complexes toward reaction of2-butanone and ethylene glycol. The main results were presented as follows:（1） Five coordination complexes of the compositions [Cu（H2L1）]2·SO4·3CH3OH（1）,[Cu（H2L）（SO4）]n·CH3OH （2）,[Cu2L2]（3）,[Cu2（H2L2）2Cl4]（4）,[Cu2（H2L2）2Br4]（5）were synthesized by using aryloxy-pyridyl ligand H2L （H2L=N,N-bis（3,5-dimethyl-2-hydroxybenzyl）-N-（2-pyridylmethyl）amine） as primary ligandand different metal salts as the metal sources. The complexes were fully characterizedby X-ray single crystal diffraction, elemental analysis and IR spectroscopy. X-rayanalysis revealed that complex2displays a1-D helical chain structure with the twoadjacent metals being bridged by a sulfate ion. The low-temperature magneticsusceptibility measurement for the solid sample of2revealed the ferromagneticCuII…CuIIinteractions. Complex1is synthesized by the reaction of ligand H2L1, whichis the transformational structure of the ligand H2L, with copper ions. Complex4,5arethe coordination complexes of H2L2, which is also the transformational structure of theligand H2L. （2） Six coordination complexes of the compositions [Fe2L2（SO4）]·H2O （6）,[Cd2L2Cl2]（7）,[Cd2L2（CH3COOH）2]·H2L （8）,[Co2L2（CH3OH）2]·CH3OH （9）,[Co2L2]·0.5CH3OH （10）,[Ni2L2（H2O）2]（11） were synthesized by the reactions ofaryloxy-pyridyl ligand H2L （H2L=N,N-bis（3,5-dimethyl-2-hydroxybenzyl）-N-（2-pyridylmethyl）amine） with different ferric salt, cobalt salt, nickel salt, cadmiumsalt. The complexes were fully characterized by X-ray single crystal diffraction,elemental analysis and IR spectroscopy. In complex6, the two FeIIatoms are bridged bysulfate and two aryl oxygen atoms. The fluorescence properties of7and8wereinvestigated. And fluorescence emission wavelength was off set compared with theligand H2L. Complex10was afforded by keeping complex9in the reaction mixture fortwo months.（2） Seven novel coordination complexes of the compositions [Cu2I2（HL2）2]·EtOH（12）,[CuI（HL2）3]·I·MeOH （13）,[Cu2（HL2）2（Cl）2]·CuCl2（14）,[Cu3I4（HL3）2]n（15）,[Cu（H2L5）2]n（16）,[Co（L4）2Cl2]（17）,[Mn（L4）2Cl2]（18） were synthesized based on theligands HL2, HL3, and L4. Complexes12and13can catalyze the ketalization reactionof methyl ethyl ketone and ethylene glycol ketal. The fluorescence property of12wasinvestigated. |
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