| The complexes, synthesized with transition metal or rare earth ions and Schiff bases as reactants, are more and more becoming the focus of contemporary research. Owing to their various structures and peculiar properties, the use foreground of these complexes is also promising in many fields, such as catalysis, bioactivity and material. In this thesis, Three types of Schiff base ligands, derived from 1,3-diamino-2-hydroxypropane with salicylaldehyde, acetylacetone and pyridine-2-carboxaldhyde were synthesized. Twelve shiffbase complexes were synthesized and characterized by elemental analysis, IR, and X-ray single crystal diffraction. The magnetic properties and fluorescent properties of some complexes were also investigated. The relation between the structure and properties were analyzed and discussed. There parts of work were made.Six copper(II) complexes containing Schiff base SalproH3 and ApacaH3 were synthesized and their crystal structures were determined by X-ray crystallography. They are [Cu(salproH)] (1), Cu2(salpro)(O2CC6H4-p-NO2)]2·H2O (2), [Cu4(salpro)2(C6H5N-NH2)2(ClO4)2][Cu2 (salpro)(C6H5N-NH2)2(CH3OH)(ClO4)]2·5CH3OH (3), [Cu2(apaca)(O2CC6H4-p-NO2)]2 (4), [Cu2(apaca)(O2CCH2C6H4-p-NO2)]2·CH3OH (5) and [Cu2(apaca)(O2CC6H4-3,5-(NO2)2] (6). The complex 1 forms a one dimensional chain in the solid state structure in which the monomeric [Cu(salproH)] units are linked by the hydrogen bonding interactions. The crystal structure of complex 3 shows that there are two cations [Cu2(salpro)(ampy)2(CH3OH)]+ and [Cu4(salpro)2(ampy)2]2+ in an asymmetric unit, they are linked by weak axial contacts and hydrogen bonding interactions. The crystal structures of complxes 2, 4, 6, show the covalent linkage between two units [Cu2(L)(O2CR)] through the phenoxo atoms or alkoxo oxygen atom of the Schiff base ligand showing axial/equatorial bond modes. And the two units [Cu2(L)(O2CR)] of complex 5 through the alkoxo atom of the Schiff base ligand and carboxylate oxygen atoms of 4-nitrobenzeneacetic acid showing axial/equatorial bond modes. The magnetic susceptibility data for the complexes 2 and 3 in the temperature rang 300～2 K reveal overall antiferromagnetic behavior, and the exchange parameters: J = -17.7 cm-1,j = -149.0 cm-1 for 2, J = -18.1 cm-1,j = -89.0 cm-1 for 3.Three nickle(II) complexes containing Schiff base SalproH3 were synthesized and their crystal structures were determined by X-ray crystallography, They are [Ni3(salpro)2 (O2CC6H4-p-NO2)2CH3-OH)2]2·3CH3OH·2H2O (7), [Ni3(salpro)2(O2CCH2C6H4p-NO2)2 (CH3OH)2] (8), [Ni3(salpro)2(O2CC6H4-p-Cl)2CH3OH)2]2·4CH3OH (9). Two differentμ-bridges are found in the complexes, The phenolic oxygens and carboxylate oxygens formμ-bridges between the terminal Ni(II) ions and central Ni(II) ion. The Ni(II) ions all have distorted octahedral configuration with donor sets {NiN2O4}for the terminal Ni(II) ions and {NiO6} for the central Ni(II) ion.Three rare earth complexes of the Schiff base PyrproH were synthesized. And one of the complex [La(pyrpro)(NO3)3] (10) were structurally characterized. The La(III) ions are eleven-coordinated and the coordination polyhedron can be described as a distorted square antiprism, the complex forms a one-dimensional chain throgh hydrogen bonding interactions. In the emission spectrum of the solid-state of Eu(III) complex, there are five main peaks, 580 nm, 590 nm, 612 nm, 684 nm and 699 nm, respectively, corresponding to 5D0â†'7F0, 5D0â†'7F1, 5D0â†'7F2, 5D0â†'7F3 and 5D0â†'7F4 transitions of the Eu(III) ion. And in the Tb(III) complex, there four main peaks, 490nm, 545nm, 585nm and 621 nm, respectively, corresponding to 5D4â†'7F6,5D4â†'7F5,5D4â†'7F4 adn 5D4â†'7F3 transitions of the Tb(III) ion.In addition,we have been synthesized through the reaction of transition metal ions Cu2+, Ni2+ and Co3+ with 2,2′,2″-triaminotriethylamine(tren) and 3,5-Pyrazoledicarboxylic acid (H3pdc) , respectively. Their single-crystal structures have been got via the X-ray test, [Co(tren)(pic)](ClO4)2 (13), [Co(tren)(dipic)]ClO4·CH3OH (14), [Ni(tren)(pic)]2(ClO4)2·CH3OH (15), [Cu3(dien)2(pzdc)2CH3OH]2·6CH3OH (16), [Cu3(pdc)2(CH3OH)6(H2O)4] (17). The tren ligand acting in the expected quadridentate coordinated with Co(III) and Ni(II) ions, pdc3- as the bridge ligand coordinated with Cu(II) ions. The magnetic susceptibility data for the complexes 16 and 17 in the temperature rang 300～2 K reveal overall antiferromagnetic behavior, and the exchange parameters: J = -11.2 cm-1for 16, J = -13.3 cm-1 for 17. |
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