| The design and construction of coordination-driven supramolecular complexes are recently attracting significant interest and extensive attention. Currently, chemists have synthesized numerous supramolecular complexes through the approach of self-assembly and thus constructed novel materials with remarkable physical and chemical properties. In this thesis, a series of novel open-chain polyether-bridged ligands and double Schiff-base ligand were synthesized. The self-assembly chemistry based on these new ligands and metal ions under hydrothermal and solvent conditions was investigated. Totally 20 new coordination compounds were prepared and fully characterized by IR, elemental analysis, X-ray single-crystal diffraction and powdered X-ray diffraction. The anion-exchange and luminescent properties based on some compounds were investigated.1. Two symmetrical Schiff-base ligands were synthesized, and we have investigated their coordination chemistry with Cd(II), Ag(I) salts. Five new coordination polymers were synthesized based on them: {Cd(L1)(SCN)2}n (1), {Cd(L1)2(OTf)2·3THF}n (2), {Ag2(L2)2(PF6)2·2CH3OH}n (3), {Ag2(L2)2(SbF6)2·CH3OH·H2O}n (4), {Ag(L2)(ClO4)·0.5CH3OH·0.25THF}n (5), and their cystal structure were discussed as well. Besides, compounds 3, 4, 5 are the isomorphic nano-tubes with one-dimension channel, and in the channel there are different anions. This provides possibility for the study of anion-exchange.2. We have investigated anion-exchange and luminescent properties based on compounds 3, 4, 5. The weak interactions between anions and host frameworks were demonstrated. The tunable fluorescence emission based on these supramolecular systems were successfully realized.3. A series of open-chain polyether-bridged ligands were synthesized. The coordination chemistry based on open-chain polyether-bridged ligands and inorganic Cu(II), Hg(II), Cd(II), Ni(II), Zn(II) and Ag(I) salts has been investigated. Ten new supramolecular compounds were synthesized based on them: {Cu(L3)2(NO3)2} (6), {Ni0.5(L3)Cl·CH3CN} (7), {Cu(L3)2(ClO4)2} (8), {Cu(L3)2(ClO4)2} (9), {Hg(L3)0.5 I2} (10), {Cd0.5(L4)(SCN)·CH3CN}n (11), {Cu2(L5)2(SCN)2(ClO4)2·0.5CH3OH·0.5H2O} (12), {Cd2(L5)3(ClO4)4·2.5CH3OH·CH2Cl2} (13), {Ag2(L6)2(SbF6)2} (14), {Cu(L7) Cl2}n (15), and their cystal structures were characterized.4. The aromatic acid was introduced into the supramolecular complexes. The self-assembly chemistry based on ligand L3, aromatic acid and metal ions under hydrothermal condition was investigated, five new supramolecular compounds were synthesized based on them: {Cu2(L3)2(C8H4O4)2·3H2O}n (16), {Cd(L3)(C8H4O4)·2H2O}n (17), {Cu(L3)(C9H4O6)·H2O}n (18), {Cu(L3)(C9H4O6)·H2O}n (19), {Cd(L3) (4, 4'-bpy)2(ClO4)2·4H2O}n (20). The results demonstrated that aromatic acid has the impact on the structure of coordination compounds, and their luminescent properties were investigated in the solid state.In this thesis, a series of novel open-chain polyether-bridged ligands and double Schiff-base ligand were synthesized. The self-assembly chemistry based on these new ligands and metal ions was investigated. The results indicate that these new ligands are the favorable precursors of constructing novel supramolecular complexes. Futhermore, anion-exchange and luminescent properties based on some compounds have been investigated. This sets experiment foundation for designing and synthesing tunable luminescent materials and functional materials.
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